SLP's 25% Harmonic Balancer / Underdrive Pulley for the LS1/LS6/LS2/LS3 Corvette and 2008-2009 LS6 Pontiac G8 and 2009 GXP incorporates a number of high-quality features you won't find on any other aftermarket unit. Chief among them are a pair of extra-tall belt-retention walls that eliminate the belt-slippage issues common to other balancers. Gains of up to 10 horsepower can be expected. Other unique design strengths include 100% steel construction (other brands use steel and aluminum), integral timing marks, and built-in puller-mounting threads. Includes a new balancer bolt and detailed installation instructions.
NOTE: Balancer requires two new belts not included.
1997-2013 C5/C6 Corvette
Main Belt: Gates 6PK1955 or Equivalent
Accessory Belt: Gates 4PK0990 or Equivalent
2008-2009 Pontiac G8/GXP
Main Belt: 6PK1880 or Equivalent
Accessory Belt: 4PK1080 or Equivalent
Extra-tall belt-retention "walls"-no more thrown belts!
No aftermarket tensioner required
100% steel construction
Integral timing marks and puller-mounting threads
Keyed for high-rpm or supercharged applications
Does not cause false knock retard or erratic power-curve dips
Includes a new balancer bolt
2008-2009 G8 GT/GXP
SLP Performance Harmonic Balancer/Under- drive Pulley Pontiac G8 100225 25 Percent Underdrive Harmonic Balancer/Pulley Steel Chevrolet 1997-2006 Corvette 5.7/6.0L 6.0L Pit Stop USAoffers SLP Performance Harmonic Balancer/Under- drive Pulley Pontiac G8 100225 at low everyday prices. Be sure to check out all of our products from SLP Performance including SLP Performance Harmonic Balancers - GM LS.