For 04+ EJ25 WRX/STI Single AVCS – GSC P-D Billet S1 Camshaft IN/EX Set 264-10.80/10.50mm Lift.
Intake Camshaft – 264 duration / 10.80mm lift
Exhaust Camshaft – 264 duration / 10.50mm lift
Intake Center line – 125
Exhaust Center line – 115
GSC Power-Division billet S1 camshafts for the USDM STi and WRX with Intake only AVCS. These will not drop any low end power, and will create more power and torque across the entire RPM range. Good for stock frame upgraded turbos or up to 500 WHP upgrades. Upgraded valve springs are required; beehive valve springs are recommended, but not required.
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings may need to be filed down slightly for clearance – Please check during install
- Proper break in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
This Part Fits:
Year | Model | Submodel |
---|---|---|
2004-2007 | Impreza | WRX STI |