aFe Power 79-10001 Features: Complete Bolt On System Reduces Drag On Accessories Does Not Modify Factory Harmonics/Dampening Lighter Than Stock CNC Billet Aluminum Black Anodized 2 Year Limited Warranty Height: 9.00 Width: 4.00 Length: 17.00 Weight: 4.00 lbs Electrical Outlet Plug Type: aFe Power 79-10001 Power Pulley Fits 08 M3