Underdrive Crankshaft Pulley Kit

Underdrive Crankshaft Pulley Kit; Lightweight; Billet Aluminum; 6 Max Horsepower Gain At 8000 RPM; 6 lbs.-ft. Max Torque Gain; Includes Shorter Belts; Mounting Hardware; Underdrives Each Of The Accessories By 13 Percent Dinan lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13%, reducing parasitic drag on the engine for a 6 horsepower and 4 lbs.-ft. torque gain. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. The kit includes all of the necessary mounting hardware, lightweight pulley and shorter belts.

Underdrives Each Of The Accessories By 13 Percent; Retains The Factory Harmonic Crankshaft Damper; Eliminates Vibration That Might Otherwise Damage The Crankshaft; Includes Lightweight Pulley