CP Piston & Ring 100mm Bore 8:2 CR WRX / STI Subaru Turbo EJ255 / EJ257 Models 2004-2021 Forester_1998-2002 installation grease and instructions are

installation grease and instructions are included in each Whiteline swaybar kit for your STI

Increased stopping power

you will need this catback adapter by our friends at GrimmSpeed

Whiteline adjustable Rear Strut Bar 02-07 WRX WAGON

The Ksport system uses a Monotube design in which the oil and gas are separated within the cylinder

CP Piston & Ring 100mm Bore 8:2 CR WRX / STI Subaru Turbo EJ255 / EJ257 Models 2004-2021 Forester_1998-2002 installation grease and instructions arePart #: SC7421 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