Harmonic Underdrive Balancer Pulleys 1999-2013 Silverado / 2010-2014 Camaro / 2009 2013 Escalade
SLP's UNDERDRIVE PULLEY/HARMONIC BALANCERS for V6 and V8 Camaros reduce engine accessories (water pump, alternator and A/C compressor) drive speed by 25%, resulting in up to 6 additional RWHP and 4 ft-lbs of rear wheel torque. These pulleys incorporate a pair of extra-tall belt retention walls that eliminate belt slippage. Includes detailed installation instructions.