Underdrive Crankshaft Pulley Kit

Underdrive Crankshaft Pulley Kit; Anodized Black; 6061 Alloy; 11 Max Horsepower Gain At 8400 RPM; 7 lbs.-ft. Max Torque Gain At 8400 RPM; Includes Crank Pulley; Two Belts; Designed To Increase Power By Reducing Parasitic Drag On Engine Dinan underdrive pulley is designed to increase power 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.

Designed To Increase Power By Reducing Parasitic Drag On Engine; Slows Down The Speed Of Accessory Drives That Rob Engine Power; Assures Your Engine Is Safe Because Of Hot Weather Testing Done; Does Not Modify Your Harmonic Damper; Anodized Black Aircraft Quality 6061 Alloy