{"title":"Engine Crankshaft Pulley","description":null,"products":[{"product_id":"underdrive-pulley-kit-s85-stre","title":"Dinan BMW M5\/M6 Underdrive Crankshaft Pulley Kit","description":"\u003cp\u003eDinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft.\u003c\/p\u003e\n\u003cp\u003eThe kit includes all of the necessary mounting hardware, lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year\/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13 Percent Underdrive - Billet Aluminum - E60\/E63\/E64\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eAll accessories are underdriven by 13% to decrease drag on the engine.\u003c\/li\u003e\n\u003cli\u003eLightweight billet aluminum crankshaft pulley, black anodized and engraved.\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware and shorter belts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":53417267527979,"sku":"D560-0001","price":483.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/3645\/4465\/files\/1_97da6167-96d7-4e59-9d77-3a55fe2a443b.png?v=1780044673"},{"product_id":"underdrive-pulley-kit-s65-late","title":"Dinan BMW M3 08-13 Underdrive Pulley Kit","description":"\u003cp\u003eDinan's underdrive pulley is designed to increase power (11 horsepower  8400 RPM and 7 lb-ft torque  8400 RPM on a stock car) by reducing parasitic drag on the engine from spinning the alternator, water pump and AC compressor. This is accomplished by slowing down the speed of these accessory drives that rob power from your engine. Dinan has done extensive hot weather testing so you can be assured that your engine is safe. The Dinan underdrive pulley is made of aircraft quality 6061 alloy. is anodized black and does not modify your harmonic damper as some underdrive pulley kits do which can be harmful to your engine.\u003c\/p\u003e\n\u003cp\u003eThis product is backed by our industry-leading 4 year\/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e BMW changed the belt configuration from a single-sided power steering and AC belt to a double-sided belt for M3's that were produced after May 2008. Please check with your dealer to find the correct Dinan part number below.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eD560-0003 for 2008-5\/08 production date with single-sided power steering \u0026amp; AC belt D560-0004 for 6\/08-2013 production date with double-sided power steering \u0026amp; AC belt\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eE90\/E92\/E93\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul class=\"productpage_list\"\u003e\n\u003cli\u003eAll accessories are underdriven to decrease drag on the engine (water pump \u0026amp; alternator underdriven by 16%; AC \u0026amp; power steering underdriven by 19%).\u003c\/li\u003e\n\u003cli\u003eLightweight billet aluminum crankshaft pulley, black anodized and engraved.\u003c\/li\u003e\n\u003cli\u003eIncludes shorter belts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":53417267560747,"sku":"D560-0004","price":483.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/3645\/4465\/files\/1_4207137d-21c6-4a21-93ee-83b8a829b209.png?v=1780044876"}],"url":"https:\/\/www.burton-racing.com\/collections\/engine-crankshaft-pulley\/e60.oembed","provider":"Burton-Racing","version":"1.0","type":"link"}