{"product_id":"active-autowerke-downpipe-w-gesi-g-sport-cat-2016-m240i-340i-440i-b58-11-062","title":"Active Autowerke Downpipe W\/ GESI G - Sport Cat - 2016+ M240i \/ 340i \/ 440i (B58) (11-062)","description":"\u003cp\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016. 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. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/li\u003e \u003cli\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/li\u003e \u003cli\u003eCasted upper stainless steel 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\u003eRated for 500 to 850 hp applications\u003c\/li\u003e \u003cli\u003eWithstands up to 1500 F\u003c\/li\u003e \u003cli\u003eCan reach operational efficiency within 9 seconds of startup\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\u003eUltra high flow 400 cell per square inch catalyst\u003c\/li\u003e \u003cli\u003eEPA compliant for use on OBD2 vehicles (1996 and newer) except in California\u003c\/li\u003e \u003cli\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/li\u003e \u003cli\u003eGESiproprietary precious metal loading technology ensures greatly reduced emissions\u003c\/li\u003e \u003cli\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/li\u003e \u003cli\u003eBoth passengers and drivers are safe from harmful emissions and noise\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":52025727680804,"sku":"11-062","price":1424.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_a3f68d69-3ea8-4f9a-bc68-7c884337f1ec.jpg?v=1771509033","url":"https:\/\/autohousesupply.com\/products\/active-autowerke-downpipe-w-gesi-g-sport-cat-2016-m240i-340i-440i-b58-11-062","provider":"AutoHouseSupply","version":"1.0","type":"link"}