The Rogue Engineering Power Pulley Kit for your E9X M3 with a production date through 04/2008 consists of a crank pulley that is CNC-machined from 6061-T6, heat-treated aluminum and specially coated with MIL-A-8625 Type III hardcoat anodized finish. Not to be confused with the cosmetic Type II anodized finish, RE's anodizing actually builds a small surface layer on top of the aluminum, preventing wear. This hardcoat anodize not only offers a true protective layer, but it also has a unique jet-black, gloss finish unlike the dark grey of other hardcoat finishes that actually looks brown. This unique finish is standard on all Rogue Engineering pulleys.
Rogue Engineering's power pulley kit effectively reduces the drag on specific pulleys while allowing others to remain at their same efficiency. This kit makes for the perfect blend of daily-driver smoothness with noticeably increased power that's always on tap. Power pulleys don't so much add power as they do to free up existing power that's reduced through drag from accessory pulleys. The RE pulleys are specifically calculated from factory dimensions, so component speeds are safely reduced without any negative effects to their true purpose.
This Rogue Engineering Power Pulley kit benefits all cars, not just those with manual transmissions. Steptronic, SMG, DCT and all-wheel drive cars can also benefit from the newly released power of the pulleys.
Kit Includes: Crank shaft pulley, new high-quality serpentine belt, and installation manual.
Note: E9X M3 kits use commonly available belts. Replacements can be acquired at most local auto parts stores.
E90 / E91 / E92 / E93 (06-13) > M3