JE Pistons F.S.R. Tour Series GP Piston Forged 4.030" Bore 0.043 x 0.043 x 3.0 mm Ring Grooves - Minus 5.0 cc AP-100 1/2-20 in Thread

1/2-20 in Thread

Borla Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower

Adjustable top air system sizes from L 60 - XXXL 64

Upper Intake Seal

Perfect for RV

JE Pistons F.S.R. Tour Series GP Piston Forged 4.030" Bore 0.043 x 0.043 x 3.0 mm Ring Grooves - Minus 5.0 cc AP-100 1/2-20 in ThreadJE Pistons is the leader in high performance forged pistons. JE Pistons has built a reputation that the competition can only follow. JE Pistons has a history of manufacturing the highest quality pistons and components that professional engine builders, race teams, and high performance enthusiasts alike trust and rely JE Pistons. The top engine builders in NASCAR, NHRA, IRL, IHRA, IDRA, PROSTAR and others choose JE Pistons over any other brand. JE