For 04+ EJ25 WRX/STI Single AVCS – GSC P-D Billet S3 Camshaft IN/EX Set 280-11.55/11.60mm Lift.
Intake Camshaft – 280 duration / 11.55mm lift
Exhaust Camshaft – 280 duration / 11.60mm lift
Intake Center line – 130
Exhaust Center line – 115
GSC Power-Division billet S3 camshafts for the USDM STi and WRX with Intake only AVCS. These camshafts are built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs. Specific engine modifications are required to utilize the true potential of these camshafts including a built bottom-end (sleeved or closed deck reccomended), built/ported heads (casting must be clearanced for higher lift), and upgraded valve springs. A standalone ECU or tune with speed density is highly reccomended in order for proper idle characteristics.
- Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
- Due to the lobe size, head castings will need to be filled 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 |
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