Saving nearly 1.6 lbs of sprung mass off of the crankshaft allows for a quicker revving engine, and less power loss spinning dead weight! We were able to underdrive the accesories by 20% without affecting the AC and alternator.
Go Fast Bits 2014 3 Pc Underdrive/Non-Underdrive Pulley Kit For Subaru WRX
For 1996-2000 Honda Civic Precision Power UnderDrive Pulley Kit Blue
Ralco RZ Performance Underdrive Pulley Kit 94-01 Acura Integra Del Sol VTEC NEW
BBK 1598 Underdrive Pulley Kit for 85-87 Monte Carlo V8/Chevy Truck 5.0L & 5.7L