{"product_id":"macht-schnell-e9x-m3-underdrive-pulley-kit","title":"Macht Schnell E9X M3 Underdrive Pulley Kit","description":"\u003cp\u003eFree additional power to your M3\/M5\/M6’s rear wheels without sacrificing or compromising your BMW’s reliability.\u003c\/p\u003e \u003cp\u003eMachined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion \u0026amp; wear resistance.\u003c\/p\u003e \u003cp\u003eOur DualDrive design replaces the Crank Accessory \u0026amp; Power Steering Pulleys, resulting in a 18-20 HP and 16-20ft. lbs TQ gain for the M5\/M6 and a 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics\/balancing are undisturbed.\u003c\/p\u003e \u003cp\u003eMacht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and come fully equipped with new belts.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePerformance Underdrive Pulleys Features:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDualDrive design allows maximum performance, with minor affect on accessory speed\u003c\/li\u003e \u003cli\u003eProper cooling temperatures are retained at proper levels on or off the track\u003c\/li\u003e \u003cli\u003eMaintains proper alternator speed, allowing sustained levels to sensitive control modules\u003c\/li\u003e \u003cli\u003eMachined from 6061-T6 aerospace aluminum\u003c\/li\u003e \u003cli\u003eT3 Hard-Anodized for maximum strength and corrosion\/wear resistance\u003c\/li\u003e \u003cli\u003eNo affects to crankshaft dampening or harmonics\u003c\/li\u003e \u003cli\u003eSimple bolt-on installation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eModels Supported\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e2008+ E9X M3\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNOTE: If your power steering belt is double sided, please select 06\/2008+\u003c\/strong\u003e\u003c\/p\u003e","brand":"Macht Schnell","offers":[{"title":"Up to 05\/2008 6MT","offer_id":40143723266111,"sku":"10.00.010","price":349.0,"currency_code":"USD","in_stock":true},{"title":"06\/2008+ 6MT \u0026 All DCT","offer_id":40143723298879,"sku":"10.00.011","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0046\/5770\/9120\/products\/macht_schnell_performance_underdrive_pulleys_19.00.01x_01.jpg?v=1689387581","url":"https:\/\/shop.precision-sport.com\/products\/macht-schnell-e9x-m3-underdrive-pulley-kit","provider":"Precision Sport Industries","version":"1.0","type":"link"}