{"title":"Active Autowerke","description":"\u003cp\u003e\u003cstrong data-start=\"185\" data-end=\"221\"\u003eEngineered power. Refined sound.\u003c\/strong\u003e\u003cbr data-start=\"221\" data-end=\"224\"\u003eActive Autowerke exhaust systems deliver proven performance with precision tuning.\u003c\/p\u003e","products":[{"product_id":"active-autowerke-bmw-n51n52-performance-exhaust-header-11-022","title":"Active Autowerke BMW N51\/N52 Performance Exhaust Header (11-022)","description":"\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power – something that is difficult to accomplish on these vehicles.\u003c\/p\u003e \u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e \u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e \u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e \u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e \u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e \u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e \u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e \u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e \u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e \u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCreated With Performance In Mind\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Headers\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025725714724,"sku":"11-022","price":721.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_0e3826e0-d082-4fb3-9395-73b216dd6d6f.jpg?v=1771508954"},{"product_id":"active-autowerke-bmw-sport-headers-11-009","title":"Active Autowerke BMW Sport Headers (11-009)","description":"\u003cp\u003eBMW Sport Headers - Active Autowerke 11-009 \u003c\/p\u003e \u003cp\u003eLooking for an easy way to watch the performance numbers of your BMW E46 325I 330I climb? It really is a simple solution! Swap the E46’s factory header with integrated cats, known to be highly restrictive, for a BMW E46 performance header that is much more free-flowing.\u003c\/p\u003e \u003cp\u003eThere are a few problems when it comes to the factory manifolds of the E46 325I 330I, which are the reason owners aren’t releasing the full potential of their BMW. For one, the exhaust catalysts are situated right against the cylinder head – which cause an extreme amount of heat to build up. Also, cylinders one through three, and four through six, are each channeled through a single pipe, greatly restricting the air flow. These characteristics are responsible for the production of more heat, due to an inherently bottleneck system, which effects the overall performance and power of the car.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eBENEFITS OF ACTIVE AUTOWERKE BMW E46 PERFORMANCE HEADER\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eTo address the problems with the factory manifolds without compromising durability, the stock exhaust catalysts are removed when the Active Autowerke 3-series sports header is installed. Our E46 performance headers are constructed completely from 100% polished 304 stainless steel and the gains produced have been dyno-tested. Be sure to check out our E46 BMW rear exhaust for even more horsepower!\u003c\/p\u003e \u003cp\u003eWhile an increase in speed is the main draw for installing our E46 3-series performance header, the added horsepower isn’t the only benefits. Our performance headers are heard to ignore because they were designed to add a lot more style and a unique look to your ride!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCreates optimum flow and eliminates restriction\u003c\/li\u003e \u003cli\u003eSuitable for Naturally Aspirated and Force Induction\u003c\/li\u003e \u003cli\u003eDyno-tested performance gains\u003c\/li\u003e \u003cli\u003eBolts up to existing factory exhaust system for a precise fit\u003c\/li\u003e \u003cli\u003eComplete mounting hardware\u003c\/li\u003e \u003cli\u003eSuitable for naturally aspirated and supercharged forced induction applications\u003c\/li\u003e \u003cli\u003e100% 304 stainless steel construction for long life\u003c\/li\u003e \u003cli\u003eTwo year warranty with free tech support\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eNOTE:\u003c\/p\u003e \u003cp\u003e-HEADER SYSTEM IS DESIGNED FOR OFF ROAD USE AND RACING APPLICATION ONLY\u003c\/p\u003e \u003cp\u003e-CAR WILL HAVE CEL WITHOUT ACTIVE AUTOWERKE SOFTWARE UPGRADE FOR OFF-ROAD USE\u003c\/p\u003e \u003cp\u003e-WILL NOT FIT RHD CARS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Headers\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025725780260,"sku":"11-009","price":721.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_aca43635-1297-4295-9e71-d52fa7336ca7.jpg?v=1771508956"},{"product_id":"active-autowerke-header-set-e46-m3-11-008","title":"Active Autowerke Header Set - E46 M3 (11-008)","description":"\u003cp\u003eThe Active Autowerke BMW E46 M3 Header is designed to increase exhaust flow without losing power which can sometimes be a tricky proposition.\u003cbr data-mce-fragment=\"1\"\u003eThese headers are developed to create optimum flow and eliminate restriction that rob much desired horsepower. Following the famed BMW E46 M3 CSL headers, each individual header runner of the Active Autowerke header is cut to a matched equal length to ensure a consistent exhaust scavenging (tolerance in lengths vary by bends to a mean average of 10-20mm).\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThey are suitable for naturally aspirated and supercharged forced induction applications, Active Autowerke’s BMW E46 M3 Headers are made out of 100% 304 stainless steel, making durability a worry of the past.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTake it from Robert Chang, BMWCC 2013 National Champion for C-MOD in his E46 M3 powered by the Active Autowerke headers. \"...These headers help to deliver the power when needed...\" You too can help unleash the hidden power in your E46 M3.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eAre they difficult to install? Absolutely not! Robust exhaust flanges with recessed mounting holes make it easy to install. If you can turn a ratchet, you’ll be on your way to increasing horsepower.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBMW exhaust header mounting hardware for BMW E46 M3Plus, all the gasket hardware that you will need is all included.\u003c\/li\u003e \u003cli\u003eExhaust manifold gasket from the header to the cylinder head. Includes (6 BMW factory gaskets).\u003c\/li\u003e \u003cli\u003eExhaust manifold nuts from the header to the cylinder head. Includes (16 BMW factory copper locking nuts).\u003c\/li\u003e \u003cli\u003eEGR gasket. Include (1 BMW factory gasket).\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eExhaust gasket from the header to the SECTION 1 exhaust. Includes (2 BMW factory gaskets).BMW exhaust header test fitted on BMW S54 jig for fitment and accuracy Quality Control. Each and every BMW E46 M3 header is test fitted to an actual BMW E46 M3 motor stand. There are fixtures to simulate engine bay features like inner fender and frame rail. Oxygen sensor placements are also checked for correct interference. The factory exhaust catalysts are removed in the process, making this solution recommended for off-road applications. Add on our BMW M3 Software Tune for even more power! \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eBMW E46 M3 SECTION 1 pipe for making power, NO RASP and clean smell Optional ADD-ON. Install and Active Autowerke BMW performance header or another BMW aftermarket brand connecting into your existing BMW factory exhaust system, there will be smell of un-burnt fuel, plus the added RASP like sound inherent in all BMW S54 motors. Click here to LEARN MORE on how to solve this issue with the SECTION 1.\u003cbr data-mce-fragment=\"1\"\u003eInput from Karl Hugh, Head of Engineering, Active Autowerke. \"...the SECTION 1 with 100 cell race style cats do not lose any power!!!! Even when we try them on the BMW E46 M3 powered with the 600 horsepower Supercharger, there is no loss in power!!!...\"\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCreates optimum flow and eliminates restriction\u003c\/li\u003e \u003cli\u003eMatched equal length runners delivers a consistent flow\u003c\/li\u003e \u003cli\u003eDyno Tested to provide improved HP and torque gains\u003c\/li\u003e \u003cli\u003eMade from 100% 304 stainless steel construction\u003c\/li\u003e \u003cli\u003eAvailable in a Polished or BRUSHED finish selection\u003c\/li\u003e \u003cli\u003eDesigned for Street and\/or Track Use\u003c\/li\u003e \u003cli\u003eBolt On Design with Precise Fitment\u003c\/li\u003e \u003cli\u003eBMW OEM Style fitment\u003c\/li\u003e \u003cli\u003eComplete hardware, includes all necessary gaskets and nuts\u003c\/li\u003e \u003cli\u003eTwo year warranty\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe four oxygen sensors are temporarily removed to install the exhaust headers. Sometimes the exact placement of these sensors are not correct, resulting in a **CHECK ENGINE ** light. Active Autowerke has created a simple, efficient schematic diagram showing the exact placement with proper connections needed for a seamless re-install.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Headers\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726337316,"sku":"11-008","price":721.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_ba159018-5526-4701-9a59-ef789b8d823f.jpg?v=1771508957"},{"product_id":"active-autowerke-m340im440i-chassis-brace-g2x-brace-11129","title":"Active Autowerke M340i\/M440i Chassis Brace - G2X Brace (11-129)","description":"\u003cp\u003eActive Introduces its G2X Brace for larger exhaust systems on your M340i or M440i car. Available January 2025 at an introductory price of $349 and will be included in our G2X M340i\/M440i Midpipes.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke G2X Chassis Brace or M340i Brace replaces your OEM brace with a new stylish unit that increases clearance for larger exhaust systems without sacrificing any rigidity. Made out of 6061 aluminum.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726370084,"sku":"11-129","price":331.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/11-129-1.jpg?v=1771508959"},{"product_id":"active-autowerke-connecting-pipes-for-f8x-bmw-m3-m4-equal-length-11-076nr","title":"Active Autowerke Connecting pipes for F8X BMW M3 \u0026 M4 Equal Length (11-076NR)","description":"These are replacement connecting pipes for those discerning BMW F8X M3\/M4 owners who have installed Active Autowerke's Equal Length Midpipe (patent pending). They are also applicable to our Single F8X Midpipe.\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Mid Pipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726402852,"sku":"11-076NR","price":284.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_0afe1fb7-edfa-4f38-bd04-b1da88a6219d.jpg?v=1771508960"},{"product_id":"active-autowerke-header-set-w-y-pipe-e36-325-328-m3-92-on-11-006","title":"Active Autowerke Header Set W\/ Y - Pipe - E36 325 \/ 328 \/ M3 92 - ON (11-006)","description":"\u003cp\u003e\u003cstrong\u003e**DOES NOT FIT ON AUTOMATIC TRANSMISSION VEHICLES**\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eRace success is all about gaining fine edges wherever possible. Sometimes, the edge gained is not so fine, it's downright huge. As is the case of our BMW E36 3-Series Performance Header, designed, tested and proven by the Active Autowerke Race Program.\u003cbr\u003eCrafted of polished 100% 304 stainless steel with thick walls for rugged durability under extreme conditions, our unique exhaust flow scavenging design separates this BMW M3 header from any other competitor. This product is responsible for horsepower increases that grow endlessly towards redline. Measured on the Active Autowerke Mustang dyno, the addition of the E36 performance header demonstrates how much improvement can be achieved with a simple bolt on (individual gains will vary depending on engine mods).\u003cbr\u003eE36 PERFORMANCE HEADERU2019S\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDyno-tested \u0026amp; Track Proven\u003c\/li\u003e \u003cli\u003eBolts to existing Active Autowerke Track Pipe Section B\u003c\/li\u003e \u003cli\u003eBolts directly to Active Autowerke E36 Race Exhaust\u003c\/li\u003e \u003cli\u003eDesigned for race application (off road)\u003c\/li\u003e \u003cli\u003ePolished 100% 304 stainless steel construction\u003c\/li\u003e \u003cli\u003eEasy installation, no instructions necessary\u003c\/li\u003e \u003cli\u003eTwo year warranty with free tech support\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eWHY PERFORMANCE HEADERS FOR YOUR BMW E36?\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eFor those wishing to improve the performance of their BMW engine, exhaust headers are one of the easiest bolt-on accessories to do so. Our headers were designed to eliminate any back pressure in the manifold, which in turn increases the power, torque and overall performance of a BMW owner's engine. We have carefully designed the headers and the finished result is a product that features two exhaust valves, instead of one, to greatly improve the flow by increasing the size of the hole the exhaust gases travel through. Enthusiasts interested in maximizing their ride's flow efficiency will find exactly what they are looking for with our performance headers!\u003cbr\u003eThere are a couple different way to experience a noticeable increase of power in your BMW with the E36 3- series performance headers. Check out the following options available to customers:\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eINSTALLATION OPTION #1:\u003cbr\u003eFor the ultimate in exhaust scavenging and performance gains, install the Active Autowerke BMW Race Exhaust system along with our BMW E36 Performance Headers.\u003cbr\u003eINSTALLATION OPTION #2:\u003cbr\u003eWith the Active Autowerke BMW E36 header, one can easily connect to any BMW E36 rear muffler; all that is needed is to install the Active Autowerke Track PipeRear Section (B).\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eNOTE:\u003cbr\u003e- PERFORMANCE HEADER SYSTEM IS DESIGNED FOR OFF ROAD USE, AND RACING APPLICATION ONLY\u003cbr\u003e- CAR WILL HAVE CEL WITHOUT ACTIVE AUTOWERKE SOFTWARE UPGRADE FOR OFF-ROAD USE\u003cbr\u003e- WILL NOT FIT RHD CARS\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Headers\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726435620,"sku":"11-006","price":787.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_38f93ca8-3098-4a12-8e1a-a429d95c1694.jpg?v=1771508962"},{"product_id":"active-autowerke-bmw-e36-exhaust-track-pipe-back-section-b-328-m3-11-005","title":"Active Autowerke BMW E36 Exhaust Track Pipe Back Section (B) 328 M3 (11-005)","description":"\u003cp\u003eThe Active Autowerke Track Pipe is comprised of TWO main components. This is the SECTION (B) which is the latter part.\u003cbr\u003eIf you install the Active Autowerke performance headers, but would like to run a rear exhaust like the BMW Factory; Active Autowerke GEN 3; Supersprint; Remus; or others, then you need the Active Autowerke Track Pipe SECTION (B).\u003cbr\u003eThe Active Autowerke SECTION (B) bolts directly to the Active Autowerke headers in an seamless operation. The terminating end of the SECTION (B) is precise and easily allows fitment of any factory like rear exhaust for the BMW E36 M3.\u003cbr\u003eActive Autowerke designed the Track Pipe not as a one piece, but a two part unit with multiple functions and flexibility. DOES NOT FIT AUTOMATIC TRANSMISSION CARS.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eConstructed from 100% polished 304 stainless steel\u003c\/li\u003e \u003cli\u003eThe perfect option to mate our performance header to any BMW like rear exhaust\u003c\/li\u003e \u003cli\u003eGood fitment and clearances\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Mid Pipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726468388,"sku":"11-005","price":569.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_7bed3d4a-a7b8-4d2c-852e-73d9ada52559.jpg?v=1771508963"},{"product_id":"active-autowerke-high-performance-42mm-blow-off-valve-replacement-diaphragm-bov-e82-135-n54-1m-e9x-335-bovdiaphragm","title":"Active Autowerke High Performance 42mm Blow Off Valve Replacement Diaphragm | BOV | E82 135 N54 1M E9X 335 (BOV-DIAPHRAGM)","description":"\u003cp\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE: \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003ePlease email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/p\u003e\u003cp\u003eReplacment diaphragm for your Active Autowerke 42mm Blow Off Valve!\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726501156,"sku":"BOV-DIAPHRAGM","price":33.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/BOV-DIAPHRAGM-1.jpg?v=1771508965"},{"product_id":"active-autowerke-g2x-m340i-m440i-midpipe-w-active-brace-11128","title":"Active Autowerke G2X M340i \/ M440i MidPipe w Active brace (11-128)","description":"\u003cp\u003eG2X BMW M340i\/M440i Mid-Pipe\u003c\/p\u003e\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our G2X\/G3X BMW M340i and M440i collection.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke M340i\/M440i midpipe was engineered to add that little extra to those looking to get some more sound from the factory or after-market M340i and M440i exhausts, while also allowing for optimum flow and resonance by removing the resonator in the Y from the BMW stock midpipe. Every effort was made to ensure that the midpipe would work with the stock exhaust and enhance the sound with a deeper tone. We believe our midpipe together with our rear exhaust offers the best combination of sound and performance versus other systems on the market today. Available for both models, this midpipe gives your BMW the deep growl a car of its caliber should have had from the factory! We include our custom G2X brace to provide additional clearance for our midpipe.\u003c\/p\u003e\u003cp\u003ePLEASE NOTE - this exhaust is midpipe intended for those who only wish to replace their stock midpipe so there needs to be a cut - all connecting hardware is provided. If the midpipe is installed at the same time as our Active Rear Exhaust no cutting is required as the entire stock exhaust can be dropped and replaced with the Active midpipe and rear exhaust.\u003c\/p\u003e\u003cp\u003eKey features\u003c\/p\u003e\u003cp\u003eMade in the USA\u003c\/p\u003e\u003cp\u003e304 Stainless Steel\u003c\/p\u003e\u003cp\u003eLow, Deep Sound\u003c\/p\u003e\u003cp\u003eEach exhaust test-fit on our M340i\/M440i Exhaust Fixture\u003c\/p\u003e\u003cp\u003eCustom Active G2X brace included with Midpipe\u003c\/p\u003e\u003cp\u003eGuaranteed to fit all G-series M340i and M440i\u003c\/p\u003e\u003cp\u003eIncludes all necessary installation hardware\u003c\/p\u003e\u003cp\u003eActive Autowerke GUARANTEES that each and every G2X M340i and M440i Exhaust Midpipe Section will be a precise fit. 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You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/p\u003e\u003cp\u003eThrough careful remapping to the BMW DME, Active Autowerke has increased the horsepower and torque by over 15 and 12 respectively for your BMW 328i 128i with the N51\/N52 motor.\u003c\/p\u003e\u003cp\u003eAvailable for 91-93 octane we now allow you to maximize your car's true potential while maximizing your fuel consumption. Modifications include settings to the to air\/fuel ratio, ignition tables, VANOS, valvetronic systems, with wide open maps for that overall improved driving experience.\u003c\/p\u003e\u003cp\u003eWith the new increased RPM limit added, one will immediately enjoy all this available and usable power.\u003c\/p\u003e\u003cp\u003eWith other off road options such as performance headers installed. the BMW performance potential is greatly improved. However, accurate software tuning becomes more crucial to showcase this BMW performance upgrade.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke performance software tuning can and will cater to your style of BMW performance mods. This upgrade is a must for the enthusiast looking to maximize their naturally aspirated car's performance.\u003c\/p\u003e\u003cp\u003eAdd the Active Autowerke Signature BMW 328i Exhaust for the best combination package!\u003c\/p\u003e\u003cp\u003eKey Features:\u003c\/p\u003e\u003cp\u003e-Works on both BMW N51 and N52 engines\u003c\/p\u003e\u003cp\u003e-Improved Gas Mileage\u003c\/p\u003e\u003cp\u003e-Sportier throttle response\u003c\/p\u003e\u003cp\u003e-Available for 91-93 octane\u003c\/p\u003e\u003cp\u003e-Smoother pulls through RPM band\u003c\/p\u003e\u003cp\u003e-Off Road options for cars without cats\u003c\/p\u003e\u003cp\u003e-Increase RPM Limiter for Manual Cars\u003c\/p\u003e\u003cp\u003e-BMW Power 15+ HP gain \u0026amp; 12+ FT\/LB of torque.\u003c\/p\u003e\u003cp\u003e-Expect Higher Gains with bolt on Modifications\u003c\/p\u003e\u003cp\u003eSoftware Purchase Options:\u003c\/p\u003e\u003cp\u003eWhen you purchase software you have 3 options to acquire it.\u003c\/p\u003e\u003cp\u003e1) Locate an Active Autowerke Flash station equipped dealer near you and have it installed there. Click here for Dealer List.\u003c\/p\u003e\u003cp\u003e2) Purchase a Simon4 cable from Active Autowerke and install the software yourself. Very useful if additional software upgrades are needed in the future. 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Made from 304 stainless steel with steel bolts for secure tightening.They measure 70mm and are used in G8X X-pipe, single and equal length midpipes. Save by buying in pairs.\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Exhaust Clamps\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726599460,"sku":"11-101T","price":66.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_fc34002b-35db-485a-ae00-c3efe2563c4c.jpg?v=1771508969"},{"product_id":"active-autowerke-catted-downpipes-gesi-cat-bmw-s58-g80-m3-g82-m4-g87-m2-11-085","title":"Active Autowerke Catted Downpipes (GESI CAT) - BMW \/ S58 \/ G80 \/ M3 \/ G82 \/ M4 \/ G87 \/ M2 (11-085)","description":"\u003cp\u003eActive Autowerke BMW M3\/M4 S58 Catted Downpipes\u003cbr\u003eActive Autowerke is proud to release the advanced Active Autowerke Signature Catted Downpipes with GESI G-Sport cats for the BMW G80 M3, G82 M4 and G87 M2. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80\/G82\/G87 which comprises this mid-pipe, a rear axle-back valved exhaust and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80\/G82\/G87 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/p\u003e \u003cp\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the G80 M3, G82 M4 and G87 M2 helps unleash some of the potential that is restricted by the OEM downpipes.\u003c\/p\u003e \u003cp\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the S58 is a bit restrictive, which results in slower exhaust gases and slower turbo spool. As the first step of the Active Autowerke G8X M3\/M4\/M2 collection, we are introducing our catted signature down pipe.\u003c\/p\u003e \u003cp\u003eThe Active Autowerke G80\/G82\/G87 S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eThis variant includes a pair of 4.5\" ultra high flow GESI catalytic converters that will NOT produce a CEL!\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/p\u003e \u003cp\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Federal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. 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Made from 304 stainless steel with steel bolts for secure tightening.They measure 65mm and are used in F8X single and equal length midpipes and G8X and X3M single midpipes. 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Dedicated to improving enjoyment of your driving machine with the highest quality products, Active Autowerke has been recognized as the leading BMW innovator. Our philosophy on developing refined BMW performance parts and making them available to the larger BMW community is highlighted by our most recent R\u0026amp;D program focused on improving the sound of the S55 exhaust. This R\u0026amp;D has resulted in the development of the Active Autowerke F80 M3 and F82 M4 equal length mid-pipe (US Patent 11248511, UK and EU patent 3882441) the other option to our world famous F8X single mid-pipe.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eAn inline 6 engine naturally has an evenly spaced exhaust pulse which results in a more smooth and full sounding noise. However, the twin turbo setup of the S55 engine while producing addition power has created a sound which sounds more like 2 independent inline 3's competing for noise than the throaty sound one would expect. The variance between the lengths of the front and rear down-pipes of almost a foot and a half creates unevenly spaced pulses so that when the merge in any form of crossover system whether stock, x-pipes, double x-pipes, single mid-pipe or rear-section solutions. Since the sound waves are moving at the same rate when they exit the system, these crossover sections are simply creating a higher pitched sound resulting in the annoying sound some have referred to as a weed eater sound. The current systems allow the banks to merge unequally pulsed sounds and after much research and testing (from many BMW experts) it was determined that equalizing the length of the exhaust pipes before mixing was a solution to this sound problem.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eInitial exhaust solutions focused on correcting this variance in the space behind the differential housing with one complaint being the inability to keep existing rear exhaust systems. Active Autowerke decided to leverage our expertise in having already developed a single mid-pipe system for the F-series M cars and devoted our R\u0026amp;D resources into developing the mid-pipe solution which you see here. Our R\u0026amp;D looked at the ways this could be done and while making up the difference in the rear section of the exhaust seemed like the most logical place, it would require a brand new rear exhaust system and we were aware that many BMW owners would not like this option. So we looked at adding length to the passenger side midpipe section and creating a new crossover section to create an exhaust note that's never been akin to the \"S55 sound\". Using a patented solution of a crossover with sinusoidal pipes allowed us to correct the downpipe length variance before mixing the sounds giving the expected 6 cylinder sports car exhaust notes.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eThe Active Autowerke F8X Equal Length Mid Pipe was specifically designed to create equal length exhaust pipes adjusting for the difference between the front and rear banks of the F80 M3 and F82 M4 down pipes before mixing in an X-pipe and creating an exhaust note different from the normal \"S55 sound\". Engineered for an exact fit on both the F80 M3 and F82 M4, the difference in sound with this mid pipe will be noticeable the first time with an open throttle!\u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003ePLEASE NOTE: IT IS STRONGLY RECOMMENDED THAT CARS WITH CATLESS (STRAIGHT-THROUGH) DOWNPIPES USE THE RESONATOR OPTION FOR THE EQUAL LENGTH MIDPIPE.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLighter weight than factory system\u003c\/li\u003e \u003cli\u003eQuicker turbo spool\u003c\/li\u003e \u003cli\u003eIncreased low end and mid-range power\u003c\/li\u003e \u003cli\u003eEqual length design eliminates the pulsing sound caused by the unequal length down pipes\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Downpipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726697764,"sku":"11-055","price":1329.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_2be9ef24-3ece-4606-acc6-b3bf418e5dd8.jpg?v=1771508974"},{"product_id":"active-autowerke-f8x-bmw-m3-m4-mid-pipe-includes-active-f-brace-11-037","title":"Active Autowerke F8X BMW M3 \u0026 M4 Mid Pipe includes Active F - brace (11-037)","description":"\u003cp\u003eActive Autowerke has been an industry leader in engineering high quality BMW performance products for over 41 years. Dedicated to improving performance with the highest quality products, Active Autowerke is synonymous with making power. Our philosophy on developing refined BMW performance parts, with power in mind, and providing them to a large BMW community can be best characterized by our F80 M3 and F82 mid pipe a valuable addition to our F8X BMW collection.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eThe Active Autowerke F8X Mid Pipe was specifically designed to eliminate the highly restrictive nature of the OEM F80 M3 and F82 M4 mid pipe thus creating optimal exhaust flow and drastically improving performance. In addressing the annoying sound ( described by many like that of a weed-eater ) we needed to better understand the issue. After much research and testing we discovered the synchronization of the Turbos as the main factor in the sound. The solution was a single mid pipe which eliminated much of the annoying sound. The next challenge was making a large 3.5\" pipe ( needed for optimum performance ) fit without ground clearance issues - thus the oval pipe. 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We never drop the diameter to smaller than the stock diameter of 80mm. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDesigned to be as unrestrictive as possible\u003c\/li\u003e \u003cli\u003eCasted upper V-Band for precise fitment\u003c\/li\u003e \u003cli\u003e4.50\" diameter piping allows for maximum power output\u003c\/li\u003e \u003cli\u003eQuicker turbo spool\u003c\/li\u003e \u003cli\u003eEasily bolts-on – no cutting or welding required\u003c\/li\u003e \u003cli\u003eDurable construction from TIG welded 304 stainless steel\u003c\/li\u003e \u003cli\u003ePrecise fitment\u003c\/li\u003e \u003cli\u003eMade in Miami, Florida\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Downpipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726763300,"sku":"11-061","price":379.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_e7bda349-f84e-4c53-b170-2a65cc74f537.jpg?v=1771508976"},{"product_id":"active-autowerke-bmw-f10-550i-signature-rear-exhaust-system-11-031","title":"Active Autowerke BMW F10 550I Signature Rear Exhaust System (11-031)","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW F10 550I Performance Exhaust System\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eFor BMW enthusiasts looking to separate their F10 550I rear exhaust system from the industry standard, we at Active Autowerke have just the performance upgrade for you! Our 510 550I performance exhaust system 90 mm tips makes the view from the rear an intimidating one, and it gives drivers noticeable gains in horsepower u2013 what more could you ask for in a BMW?\u003cbr\u003eThis rear exhaust system in completely constructed with durable, polished 100% 304 stainless steel for added sturdiness throughout the product. It also features four large, double-walled 90 mm signature stainless steel tips to complete the look of the rear exhaust. The Active Autowerke BMW F10 550I is in a class all its own. This upgrade boasts true performance, added durability, attractive weight advantage and innovative features.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eActive Autowerke F10 550I Performance Exhaust System Benefits\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThis BMW F10 5-Series exhaust delivers everything we know BMW enthusiasts would want in a performance rear exhaust including: a sophisticated yet aggressive tone, weight savings, andmost importantly noticeable gains when it comes to horsepower!\u003cbr\u003eFirst, the addition of our F10 550I Signature Rear Exhaust creates a tone in the car that enthusiasts really love. This muffler spawns a sound that is much more assertive than the stock exhaust system, yet it is still refined. This results in an exhaust tone that is both thrilling and unobtrusive the perfect combination!\u003cbr\u003eNext, there is a pretty big difference between the weight of the 510 550I factory exhaust system and our signature exhaust a 10 lb. difference to be exact. The weight saved with our performance system translates to even more gains for your BMW F10 550I.\u003cbr\u003eLast, but definitely not least, is the most sought-after benefit of our 550I performance exhaust system the horsepower gains. On the in-house Active Autowerke Mustang dyno, we measured gains of 7+ WHP over stock configuration. Unearthing the extra power of a BMW owner's stock exhaust is what we are here for!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eActive Autowerke F10 550I Signature Rear Exhaust System Features:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLarger diameter mandrel bent exhaust piping for maximum flow\u003c\/li\u003e \u003cli\u003eDurable, polished 100% 304 stainless steel\u003c\/li\u003e \u003cli\u003eDouble-walled 90 mm signature stainless steel tips\u003c\/li\u003e \u003cli\u003eAdjustable tips with embossed Active Autowerke logo on the dual tip mode\u003c\/li\u003e \u003cli\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/li\u003e \u003cli\u003eActual dyno measure results with gains of 7+ WHP over stock configuration\u003c\/li\u003e \u003cli\u003eFitment for BMW M sport rear diffuse\u003c\/li\u003e \u003cli\u003eComplete illustrated instruction manual\u003c\/li\u003e \u003cli\u003eTwo year warranty included\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/No8SmgJrRCc\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Exhaust Systems\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726796068,"sku":"11-031","price":1234.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_dbf63143-3c18-44ed-9e7a-1856309db62b.jpg?v=1771508978"},{"product_id":"active-autowerke-signature-rear-exhaust-e9x-2006-2012-325-328-330-n52-11-021","title":"Active Autowerke Signature Rear Exhaust - E9X 2006 - 2012 325 \/ 328 \/ 330 (N52) (11-021)","description":"\u003cp\u003eOptimal power, performance and sound are the core values of our Active Autowerke BMW 328i exhaust system, designed to fit BMW 325i and 328i E9X N52 models. A free-flow design and beefy 80mm dual exhaust tips allow 35% to 40% more exhaust flow than the stock BMW 328i exhaust system.\u003cbr\u003eThe increased flow minimizes back pressure, resulting in substantial HP and torque gains. The system's Brushed stainless steel construction also makes a bold visual statement, while also increasing durability. This BMW 328i performance exhaust produces a sporty, yet mellow tone.\u003c\/p\u003e \u003cp\u003eFactory-fit specifications are followed closely, yet our system allows 14lbs in weight savings as opposed to the factory BMW exhaust.\u003c\/p\u003e \u003cp\u003eThis exhaust features the Active Autowerke Muffler and Noise Cancellation Chamber to assist in reducing drone. Manufactured from 100% brushed 304 stainless steel, this clamp-on system is suited for the N52 owner looking to bring their BMW's performance to new heights.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eFits BMW 325i, 328i, 330i\u003c\/li\u003e \u003cli\u003eFull 304 stainless steel construction with brushed finish\u003c\/li\u003e \u003cli\u003e3\" Mandrel-bent piping for optimum exhaust flow\u003c\/li\u003e \u003cli\u003eStraight through muffler design\u003c\/li\u003e \u003cli\u003eNCC (Drone Reduction)\u003c\/li\u003e \u003cli\u003eDual 80mm Active Autowerke Signature tips, staggered\u003c\/li\u003e \u003cli\u003eWeight Savings *14lbs lighter than stock BMW exhaust*\u003c\/li\u003e \u003cli\u003eDesigned to use existing factory mounts and hardware\u003c\/li\u003e \u003cli\u003eFully adjustable mounting positions\u003c\/li\u003e \u003cli\u003eFully adjustable tips\u003c\/li\u003e \u003cli\u003eIllustrated instruction manual\u003c\/li\u003e \u003cli\u003eTwo year warranty\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/eUaaHGRSvYQ\" width=\"560\" height=\"314\" allowfullscreen=\"allowfullscreen\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Exhaust Systems\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726828836,"sku":"11-021","price":721.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_ae3fbd74-4076-4eb9-8c3e-022cd3bf1a3b.jpg?v=1771508979"},{"product_id":"active-autowerke-bmw-e46-m3-exhaust-section-1-with-100-cell-hi-flow-catalysts-11-110","title":"Active Autowerke BMW E46 M3 Exhaust SECTION 1 with 100 CELL hi flow catalysts (11-110)","description":"\u003cp\u003e\u003cstrong\u003eDesign and Concept:\u003c\/strong\u003e\u003cbr\u003eFactory BMW exhaust SECTION 1 fr BMW E46 M3Why create an exhaust SECTION 1 when the USA version BMW factory SECTION 1 already comes from the factory as a straight through design with two separate pipes and resonators already built in on one side?\u003cbr\u003eIf a performance aftermarket headers was installed, how much better could one gain against the already BMW factory SECTION 1?\u003cbr\u003e\u003cstrong\u003eSolution:\u003c\/strong\u003e\u003cbr\u003eThBMW Factory Section 1 with RASP like sounde Active Autowerke Exhaust SECTION 1 only comes into play if the E46 M3 already has a performance header already installed. One will experience a high smell of unburnt fuel. (due to the open exhaust w\/o any catalysts) and development of a RASPY like sound of which the BMW S54 engine is notorious for with the BMW Stock Section 1 when equipped. This raspy like sound is a matter of engine sound harmonics at a specific RPM range, a sort of resonance that is very loud and noticeable when the engine is revving at or above 4,000 rpm.\u003c\/p\u003e \u003cp\u003eThis is the BMW section 1 - where the RASP like noise emits from.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eBMW SECTION 1 for Rasp Elimination on BMW E46 M3With the Active Autowerke Exhaust SECTION 1 installed, the BMW performance gains are about the same as running the factory section 1. However, that's impressive considering the exhaust flow is also being filtered while running through a pair of 100 cell catalysts. The power and performance is still there.\u003c\/p\u003e \u003cp\u003eGone is the smell of unburnt fuel. A BIG advantage.\u003cbr\u003eGone is the RASP like sound. Another BIG advanatge.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDesigned and recommended for Off Road Use\u003c\/li\u003e \u003cli\u003ePair of 100 CELL Hi Flow metallic exhaust catalysts included\u003c\/li\u003e \u003cli\u003eNo unburnt fuel like smell\u003c\/li\u003e \u003cli\u003eNO RASP like sound\u003c\/li\u003e \u003cli\u003eBrushed Finish for that industrial appeal\u003c\/li\u003e \u003cli\u003eConstructed from 100% 304 stainless steel\u003c\/li\u003e \u003cli\u003eUtilizes factory mounting points for easy bolt-on install\u003c\/li\u003e \u003cli\u003eTwo year warranty with Free Tech support\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Downpipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726861604,"sku":"11-110","price":949.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_9e646fc5-041d-46ee-a9f1-7187cf23abf7.jpg?v=1771508980"},{"product_id":"active-autowerke-high-performance-42mm-blow-off-valve-wo-flange-bov-e82-135-n54-1m-e9x-335-color-silver-aa-bov","title":"Active Autowerke High Performance 42mm Blow Off Valve wo Flange | BOV | E82 135 N54 1M E9X 335 - Color: Silver (AA BOV)","description":"\u003cp\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE:\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003ePlease email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/p\u003e\u003cp\u003eA blowoff valve (BOV), bypass valve or dump valve is a pressure release system present in most turbocharged engines. Its purpose is to prevent compressor surge, and reduce wear on the turbocharger and engine. Blowoff valves relieve the damaging effects of compressor \"surge loading\" by allowing the compressed air to vent to the atmosphere, making a distinct hissing sound, or recirculate into the intake upstream of the compressor inlet.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke Blow Off Valve is a pull-type blow off valve suited for high horsepower applications. It is used extensively throughout the Active Autowerke product line both for turbocharging and supercharging. Constructed from an all aluminum cast body, with a large single stage, steel pull-type valve to handle the extreme pressure and airflow discharge volume that is associated with high boost \/ horsepower applications.\u003c\/p\u003e\u003cp\u003eThe BOV is engineered for up to 43psi of boost and can function precisely on BMWs producing more than the 500 horsepower range.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726894372,"sku":"AA BOV","price":299.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/AA_20BOV-1.jpg?v=1771508982"},{"product_id":"active-autowerke-m50-s50-s52-high-performance-thermostat-housing-cover-e36-325-328-m3-z3m-thermostatkit","title":"Active Autowerke M50, S50, S52 High Performance Thermostat Housing Cover | E36 325 328 M3 Z3M (THERMOSTAT-KIT)","description":"\u003cp\u003eSwap plastic for aluminum. \u003c\/p\u003e\u003cp\u003eAnd forget about cracking, forever.\u003c\/p\u003e\u003cp\u003eHere are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won't take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Sure sounds like a no-brainer to us.\u003c\/p\u003e\u003cp\u003eCurrently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.\u003c\/p\u003e\u003cp\u003eUnit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included. For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726927140,"sku":"THERMOSTAT-KIT","price":56.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/THERMOSTAT-KIT-1.jpg?v=1771508983"},{"product_id":"active-autowerke-bmw-e9x-m3-power-pulley-kit-replacement-belt-double-sided-ppbdpk1070g2","title":"Active Autowerke BMW E9X M3 Power Pulley KIT Replacement Belt (Double Sided) (PPB-DPK1070-G2)","description":"\u003cp\u003eReplacement double sided belt for your E9X M3 Power Pulley Kit!\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025726959908,"sku":"PPB-DPK1070-G2","price":94.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/PPB-DPK1070-G2-1.jpg?v=1771508984"},{"product_id":"active-autowerke-3-filter-replacement-for-e36-supercharger-kit-green7065","title":"Active Autowerke 3\" Filter Replacement for E36 Supercharger Kit (GREEN7065)","description":"\u003cp\u003eThis is a 3\" replacement filter for your Active Autowerke Supercharger Kit.\u003c\/p\u003e\u003cp\u003eApplication:\u003c\/p\u003e\u003cp\u003e-Active Autowerke SC kit for BMW E36 325i\u003c\/p\u003e\u003cp\u003e-Active Autowerke SC kit for BMW E36 328i\u003c\/p\u003e\u003cp\u003e-Active Autowerke SC kit for BMW E36 M3 Level 1\u003c\/p\u003e\u003cp\u003ePlease confirm your filter size by measuring.\u003c\/p\u003e\u003cp\u003eThis is an Active Autowerke Spec Green Filter.\u003c\/p\u003e\u003cp\u003e-Green High Performance Air Filters are uniquely designed to take full advantage of cottons capabilities.\u003c\/p\u003e\u003cp\u003e-Unlike multi-layer gauze filters which can fray and release fiber particles into your engine, Green Filter USA uses two layers of tightly-interwoven cotton fabric. The 3 main benefits to woven cotton are the fact its thinner, holds oil better, and is stronger. Since its thinner, it allows better air flow without sacrificing filtration. The cotton holds the oil more evenly, and the medium is much stronger. Unlike gauze, you cannot wear a hole in woven cotton by rubbing it, and there is no way small bits of cotton can rip off since its interlocked with another piece.\u003c\/p\u003e\u003cp\u003e-Green Filter USA filters are coated in steel mesh for extra strength and durability, because of this, Green filters are much more dent resistant.\u003c\/p\u003e\u003cp\u003e-Green Filter USA filters offer fully seam welded, powder coated, laser cut steel housing with pre-assembled rubber seals on our intake housings.\u003c\/p\u003e\u003cp\u003eNOTE:\u003c\/p\u003e\u003cp\u003eDon't discard your old GREEN filter. Use the GREEN FiIter Cleaning KIT to help restore the life in your old GREEN filter. Just have it cleaned and ready for use. 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With a variety of sticker designs and shapes, you also have a selection between the BOOST BLUE, KAWA GREEN, SILVER BULLET colors.\u003c\/p\u003e\u003cp\u003eA placement card is also provided as recommendations for sticker placements.\u003c\/p\u003e\u003cp\u003eEach Sticker Pack includes:\u003c\/p\u003e\u003cp\u003e-2 Active Autowerke LOGO stickers in specific color choice\u003c\/p\u003e\u003cp\u003e-2 Active Autowerke www.activeautowerke.com stickers in specific color choice\u003c\/p\u003e\u003cp\u003e-1 Active Autowerke sticker placement card\u003c\/p\u003e\u003cp\u003eSimple and easy to do, it also comes to you with FREE SHIPPING.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025727090980,"sku":"19-005U","price":9.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/19-005U-1.jpg?v=1771508987"},{"product_id":"active-autowerke-sticker-pack-active-sticker-pack-in-silver-bullet-19005s","title":"Active Autowerke Sticker Pack - Active Sticker Pack in SILVER BULLET (19-005S)","description":"\u003cp\u003eActive Autowerke Sticker Pack...Come Play With Power! 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Active Autowerke and it's engineering team have spent countless hours in R\u0026amp;D taking full advantage of the sport cams to increase the car's power output in areas where it is lacking. Through careful remapping to the DME Active Autowerke has increased the horsepower and torque by 15 and 12 respectively. Available for 91-93 octane we now allow you to maximize your car's true potential while maximizing your fuel consumption. Modifications to the a\/f, ignition tables, and wide open maps also allow for an overall improved driving experience. With your new increased RPM limit you will be able to enjoy more usable power. With other off road options such software for cars without cats, Active Autowerke allows you to maximize your car's modifications' true potential. This upgrade is a must for the enthusiast looking to maximize their naturally aspirated car's performance.\u003c\/p\u003e\u003cp\u003eNOTE: 325xi and 330xi models will use a Simon 2 cable instead of Simon 4.\u003c\/p\u003e\u003cp\u003eKey Features:\u003c\/p\u003e\u003cp\u003e-Improved Gas Mileage\u003c\/p\u003e\u003cp\u003e-Special tuning for Sport Cams (MS45)\u003c\/p\u003e\u003cp\u003e-Sportier throttle response\u003c\/p\u003e\u003cp\u003e- Available for 91-93 octane\u003c\/p\u003e\u003cp\u003e-Smoother pulls through RPM band\u003c\/p\u003e\u003cp\u003e-Increase RPM Limiter for Manual Cars\u003c\/p\u003e\u003cp\u003e-15 HP gain \u0026amp; 12 ft lbs of torque.\u003c\/p\u003e\u003cp\u003e-Expect Higher Gains with bolt on Modifications.\u003c\/p\u003e\u003cp\u003eSoftware Purchase Options\u003c\/p\u003e\u003cp\u003eWhen you purchase software you have 3 options to acquire it. This bundle includes a Simon 4 cable so you can DIY.\u003c\/p\u003e\u003cp\u003e1) Locate an Active Autowerke Flash station equipped dealer near you and have it installed there. Click here for Dealer List:\u003c\/p\u003e\u003cp\u003ehttps:\/\/store.activeautowerke.com\/pages\/dealers\u003c\/p\u003e\u003cp\u003e2) Purchase a Simon4 cable from Active Autowerke and install the software yourself. Very useful if additional software upgrades are needed in the future.\u003c\/p\u003e\u003cp\u003e3)Remove and mail Active Autowerke your ECU and we will install the software. \u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025727156516,"sku":"16-010S","price":521.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/16-010S-1.jpg?v=1771508991"},{"product_id":"active-autowerke-g87-m2-chassis-brace-g87-brace-11120","title":"Active Autowerke G87 M2 Chassis Brace - G87 Brace (11-120)","description":"\u003cp\u003eActive Introduces its G Brace for larger exhaust systems on your new M2 car. Available February 2022 at an introductory price of $299 and will be included in our G80 Signature Midpipes.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke G87 Chassis Brace or G87 Brace replaces your OEM brace with a new unit that increases clearance for larger exhaust systems without sacrificing any rigidity. Made out of 6061 aluminum.\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025727189284,"sku":"11-120","price":284.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/11-120-1.jpg?v=1771508993"},{"product_id":"active-autowerke-x3m-x4m-signature-single-midpipe-with-90-fixed-price-shipping-in-lower-48-states-w-exhaust-dump-11102d","title":"Active Autowerke X3M \/ X4M Signature single mid-pipe with $90 fixed price shipping in lower 48 states - w Exhaust Dump (11-102D)","description":"\u003cp\u003e**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF-ROAD USE ONLY! NOW AVAILABLE WITH EXHAUST DUMP.\u003c\/p\u003e\u003cp\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE:\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003ePlease email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/p\u003e\u003cp\u003eAt the repeated requests from our customers, Active Autowerke is pleased to release the Signature Single Mid-Pipe for the BMW X3M and X4M. This brings our expertise with a single mid-pipe from the F8X and G8X M cars to the X3M and X4M SUVs. It provides a more aggressive and deeper tone to the stock exhaust.\u003c\/p\u003e\u003cp\u003eWhile these SUVs have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M vehicle. In order to solve this, Active Autowerke has created a full exhaust system for the X3M\/X4M which comprises a midpipe, a rear axle-back valved exhaust and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a X3M\/X4M with an amazing sound. You will feel like you are driving a true M-car.\u003c\/p\u003e\u003cp\u003eThis exhaust system upgrade was designed and engineered to work with most after-market exhaust systems\/mufflers on the market today with only a single cut needed in the stock mid-pipe. 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A manufacturer software issue locked the devices into Write Mode after the first tune was written to the vehicle. Getting the tool back into the proper \"Read Mode\" was a complicated endeavor; we knew our next programming tool would have to have the flexibility to ALWAYS READ AND WRITE AT ANY TIME.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eCompared to the G5, the SIMON 3 has a much more consumer-friendly price, making it much easier to bundle the tool with a file tune or two (or three!) for your BMW. This simply wasn't possible with the G5 as it proved too costly for our consumers.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eAdvanced Technology\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eAfter flashing a tune, error codes are commonly generated in both Automatic transmissions and DCT gearboxes. Unlike the G5 and SIMON 1, the SIMON 3 Remote Tuning Cable provides the ability to erase these error codes.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThe SIMON 3 is the ONLY handheld device enabling the owner to upload changes to BMW software.The SIMON 3 Personal Programmer does not include performance software. Cost of software is additional.\u003c\/li\u003e \u003cli\u003eThe SIMON 3 is discounted for select BMW models in bundled package deals. 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Dedicated to improving performance with the highest quality products, Active Autowerke is synonymous with making power. Our philosophy on developing refined BMW performance parts, with power in mind, and providing them to a large BMW community can be best characterized by our F80 M3 and F82 mid pipe a valuable addition to our F8X BMW collection.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eThe Active Autowerke F8X Mid Pipe was specifically designed to eliminate the highly restrictive nature of the OEM F80 M3 and F82 M4 mid pipe thus creating optimal exhaust flow and drastically improving performance. In addressing the annoying sound ( described by many like that of a weed-eater ) we needed to better understand the issue. After much research and testing we discovered the synchronization of the Turbos as the main factor in the sound. The solution was a single mid pipe which eliminated much of the annoying sound. The next challenge was making a large 3.5\" pipe ( needed for optimum performance ) fit without ground clearance issues - thus the oval pipe. 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GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. 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Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. 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The Active Autowerke B58 downpipe for the 340i and 440i helps unleash some of the potential that is restricted by the OEM downpipe.\u003cbr\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003cbr\u003eThe Active Autowerke F-Chassis B58 Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter less than the stock diameter of 80mm.\u003cbr\u003e\u003cstrong\u003eThis variant includes a 4.5\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/strong\u003e\u003cbr\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/p\u003e \u003cp\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/p\u003e \u003cp\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e: Federal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. 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The newest addition to our BMW F90 M5 Collection, these S63TU downpipes represents our outlook on creating innovative products with performance in mind.\u003cbr\u003eTheS63TU downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance. Our M5 downpipes will significantly increase horsepower and torque throughout the powerband. They will reduce any turbo lag\u003cbr\u003eOur F90 M5 downpipes are manufactured in house using 304 stainless steel. Each set is meticulously tig welded and checked for perfect fitment. Our design uses a factory matched 3.5\" v-band inlet that tapers to a high flowing, mandrel bent\" body and includes the lower section sold by others as a \"mid-pipe\".\u003cbr\u003e**Our downpipes allow the use of the OEM O2 sensor heat shield. 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These clamps are strong and robust with the beefiest in band width, a 14 mm shank bolt to provide the highest degree of load when tightened. An additional support brace is also provided (just like the factory) to relieve the load and stress if installed. The gains in horsepower is achieved through the free flowing design of the Test Pipes and the replacing of the factory primary catalytic converters by removing the restrictions of the OEM cats. They will turn on the check engine light. With guaranteed HP gains this application is a must for the track user. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEasy BMW horsepower gains\u003c\/li\u003e \u003cli\u003eAll stainless steel construction with a brushed finish\u003c\/li\u003e \u003cli\u003ePrecise and tight seal to factory headers\u003c\/li\u003e \u003cli\u003eBeefy, support brace integrated\u003c\/li\u003e \u003cli\u003eZ STYLE expansion slot for a tight seal\u003c\/li\u003e \u003cli\u003eIndustry standard TORCA Clamps included\u003c\/li\u003e \u003cli\u003eComplete instructions included\u003c\/li\u003e \u003cli\u003eLimited 2 Year Warranty included\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cli\u003ePart Type:Test Pipes\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025727779108,"sku":"11-019","price":315.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_f3ac2496-b269-4bdd-ab6f-e6f61d61c19d.jpg?v=1771509039"},{"product_id":"active-autowerke-m50-s50-s52-high-performance-thermostat-bmw-e36-325-328-m3-z3m-s52therm-kit","title":"Active Autowerke M50, S50, S52 High Performance Thermostat | BMW E36 325 328 M3 Z3M (S52THERM KIT)","description":"\u003cp\u003eUnder extreme heat conditions like on the racetrack, or on the open road in high-ambient temperature areas like Florida or Texas, the E36 series M50, S50 and S52 engines are susceptible to overheating failures such as upper radiator hose outlet break-off or cracking of plastic thermostat housing. Bad news, every time.\u003c\/p\u003e\u003cp\u003eA lower 71 degree Celsius thermostat helps the engine run cooler from the start, reaching operational temperature earlier to enhance circulation and dissipate heat. The net effect is reduced thermal stress on the entire cooling system.\u003c\/p\u003e\u003cp\u003eCompare the factory thermostat that has a rating of 88 degree Celsius to the 71 degree of the Active thermostat. You cannot disagree with the numbers. \u003c\/p\u003e\u003cp\u003eThermostat includes factory O-RING for a simple and complete installation.\u003c\/p\u003e\u003cp\u003eNOTE: \u003c\/p\u003e\u003cp\u003eThis device is not intended for installation in colder climates. The engine will run that much colder making the heating system slow to react or become inactive. 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Finally there is a S55 aftercooler kit upgrade that is good enough to carry the Active Autowerke brand.\u003c\/p\u003e\u003cp\u003eYears of success in developing cars for motorsport has allowed Active to leverage its expertise to the top-mount charge air cooler on the F80 M3, F82 M4 and F87 M2 Competition. This aftercooler was made for the S55 and crafted using only high-grade aluminum to outperform the factory aftercooler in all situations from everyday driving to the toughest racing. The factory cooler was built to support a specific power target and environment. Many of you have increased the performance of the S55 which quickly overwhelms the stock cooler leading to heat soak and higher intake air temperatures which triggers the ECU to downgrade the performance until cooler air returns.\u003c\/p\u003e\u003cp\u003eActive's focus was not on a mass-market aesthetic add-on but a properly engineered improvement over the existing hardware. Active uses a tube and fin core designed specifically for the S55 with an enhanced design to maximize the cooling efficiency in as small a package as possible.The end tanks are billet machined aluminum, not cast, folded, or bonded and ensure even distribution of the water throughout the internal aftercooler cores. High precision fittings, CNC machining, and TIG welding throughout ensures the highest quality construction to prevent pressure loss, and the lowest weight, in a bolt-on replacement. But we also didn’t leave the aesthetics by the wayside as we dip the visible top of the aftercooler in a carbon fiber coating giving your installed cooling system a decidedly top market look to match the improved cooling performance.\u003c\/p\u003e\u003cp\u003eThe Active silicone charge pipes for the F80 M3, F82\/F83 M4 and the F87 M2 Competition improve the flow over the stock, compressed plastic pipes. The Active Silicone Charge Pipes allow you to maximize power on your F8X by securing all the boost that your S55 is making. These pipes replace the hot-side pipes leaving the turbos and into the top-mount aftercooler. The stock S55 charge pipes are notorious for developing hairline fractures at their plastic seams. These fractures or cracks are unnoticeable to the naked eye, but under boost pressure they open up leaking the desired charged air into the engine bay, and consequently can rob your S55 of it's full power potential. In addition, these leaks can trigger your S55's turbochargers to work harder to hit and maintain target boost pressure, potentially wearing them out sooner. Active uses silicone in this area because it will not contribute to heat soak and it's easier to mold for the correct clearances. Active uses a 5-layer silicone hose with all needed adapters and stainless hose clamps included. 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