CP Piston & Ring Bore 99.5mm 8:2 CR WRX / STI Subaru Turbo EJ255 / EJ257 Models 2004-2021 STI_2015-2021 BORLA stands behind every system

BORLA stands behind every system with a Million-Mile Warranty

-All clutch discs are equipped with thin cerametallic friction material (approximately half the thickness of a stock disc)

For maximum performance

Subaru WRX 2008-2014 w/ 5x100 STI Brembo Swaps*

Part #: 22074

CP Piston & Ring Bore 99.5mm 8:2 CR WRX / STI Subaru Turbo EJ255 / EJ257 Models 2004-2021 STI_2015-2021 BORLA stands behind every systemPart #: SC7420 CP WRX and STI forged pistons feature superb ring seal, higher vacuum, lower blow by, greater durability and increased horsepower and torque through the power band. Better yet, peak horsepower is retained through the life of the piston rings. This is achieved by lightweight forgings and CP's exclusive machining techniques and processes. CP's commitment to racing is reflected in every piston they produce. CP is dedicated to superior