CP STI Forged Pistons +.020 Bore With Rings

The piston is the weak link in the stock STI block. By adding these forged pistons to your stock STI block you are able to get 500+ hp out of the motor. These pistons are +.020, Standard bore pistons are available as well.Features include:High Strength Aluminum forgingsSuper Lightweight designsFully CNC Machined and balanced to +/- 1 gramWrist pins includedAccumulator groove includeddouble pin oilers, force fed from oil ringpick lock grooves for easy lock removal