CP Piston & Ring Set Bore 100mm Size +0.5mm CR 10:1 WRX / STI Subaru EJ25 Turbo Models 2004-2021 vendor_Centric 100% digital wideband air/fuel ratio

100% digital wideband air/fuel ratio monitoring

The Brian Crower Stage 3 Race Specification Cams for the 02-05 WRX EJ205are designed with a longer duration profile and added rpm potential

If you need it sooner

Under-driving - Additional power increases also come from making the crank pulley smaller

Part #: 612000CA-1

CP Piston & Ring Set Bore 100mm Size +0.5mm CR 10:1 WRX / STI Subaru EJ25 Turbo Models 2004-2021 vendor_Centric 100% digital wideband air/fuel ratioPart #: SC7417 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