{"product_id":"active-autowerke-underdrive-pulley-kit-e9x-m3-13-001","title":"Active Autowerke Underdrive Pulley Kit - E9X M3 (13-001)","description":"\u003cp\u003eThis is a complete bolt on kit engineered for BMW Performance tuning. Uses aircraft grade billet 6061 Hard Coat Anodized Aluminum for the strength and durability.\u003c\/p\u003e \u003cp\u003eThe BMW S65 V8 engine as used in the BMW E9X M3 does not make available all of the horsepower that the engine actually produces. This Power Pulley KIT through a redesign of the crankshaft outer pulley, actually releases this developed and available horsepower.\u003c\/p\u003e \u003cp\u003eThis performance product is designed to not only to make available horsepower but to still retain all the inherent qualities of your BMW E9X M3 without sacrificing reliability.\u003c\/p\u003e \u003cp\u003eAnother key element in the launching of this under-drive pulley system was the task of manufacturing a DPK, a double side belt for the air conditioner. Whenever you alter the crankshaft main pulley size, it will also influence the size of the A\/C belt. As of late production 2007, BMW change over the belt configuration to a double sided groove belt on the E9X M3. Active Autowerke philosophy is always to try and maintain components like a BMW fashion, as if BMW would have done. This would be a first in the BMW performance industry to have an aftermarket DPK belt produced.\u003c\/p\u003e \u003cp\u003eTo further enhance the system, Active Autowerke will provide an extra spare DPK belt with the kit. This would be for emergency circumstances if the need ever arises.\u003c\/p\u003e \u003cp\u003eAnodized in a hard finish as revealed by the almost jet black color also makes this BMW performance product seem obscure within the engine bay. This performance upgrade is easy to install and can be fully reversible if the need arises. It is packaged to be simple with a crank pulley and correct matching belts in a all inclusive KIT. Please verify your E9X M3 on the A\/C belt if single sided or double sided (DPK) when ordering.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHP gains: 10 RWHP ~ 12+ HP\u003c\/li\u003e \u003cli\u003eComplete Bolt on System and is easily reversible\u003c\/li\u003e \u003cli\u003eAircraft Grade Billet 6061 Hard Coat Anodized Aluminum\u003c\/li\u003e \u003cli\u003eRetains Factory Crank Hex Drive Adapter\u003c\/li\u003e \u003cli\u003eIncludes Replacement DRIVE and A\/C Belts and EXTRA spare DPK belt provided where applicable\u003c\/li\u003e \u003cli\u003eDesigned for use on DCT and Manual models\u003c\/li\u003e \u003cli\u003eDoes Not Modify Factory Harmonics or Dampening\u003c\/li\u003e \u003cli\u003eReduces Rotational Mass\u003c\/li\u003e \u003cli\u003eDoes not cause overheating found in smaller pulley designs\u003c\/li\u003e \u003cli\u003ePair with the Active Software for Additional Gains\u003c\/li\u003e \u003c\/ul\u003e\u003ciframe src=\"\/\/www.youtube.com\/embed\/_IqUdwz-5oc\" 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:Crankshaft Pulleys\u003c\/li\u003e\u003cli\u003eFitment Spec:Vehicle Specific\u003c\/li\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":52025757008164,"sku":"13-001","price":379.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/ShowProductImage_c957960e-b76e-4b94-b0de-fd2687db5b22.jpg?v=1771509633","url":"https:\/\/autohousesupply.com\/products\/active-autowerke-underdrive-pulley-kit-e9x-m3-13-001","provider":"AutoHouseSupply","version":"1.0","type":"link"}