JE Pistons and Rings 100 Bore 79mm Stroke 8.8:1 Comp Subaru WRX / STI EJ257 Billet FSR 2004-2021 vendor_Injen Matte black enamel finish on

Matte black enamel finish on underside support structure

This eliminates the "dead spots" experienced by other aftermarket intakes due to turbulence

spring-centered disc is recommended for larger clutch sizes to absorb more heat and for smoother engagement

You have to see this header in person to appreciate it

CBN (Cubic Boron Nitride) machine turned finish reduces disc thickness variation and the potential for pad “knock”

JE Pistons and Rings 100 Bore 79mm Stroke 8.8:1 Comp Subaru WRX / STI EJ257 Billet FSR 2004-2021 vendor_Injen Matte black enamel finish onPart #: 286463 JE Pistons and rings are billet racing pistons for Subaru WRX and STI! Originally created for the Crawford Performance Unlimited AWD Time Attack Subaru and Ken Block's Gymkhana racecar, these pistons are now available to the public. The new pistons are 100% CNC machined from high quality 2618 T6 wrought aluminum bar stock and are specifically designed for high horsepower road and drag race engines. The pistons feature internal and