GSC Power-Division Billet S3 Camshafts
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GSC Power-Division Billet S3 Camshafts - Subaru EJ255/EJ257 Intake AVCS (WRX 2.5L 2006-2007 / STI 2004-2007) - 282/282
GSC Power-Division billet S3 camshafts for the US-specification EJ255/EJ257 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 listing covers the GSC Power-Division Billet S3 Camshafts for the Subaru EJ255/EJ257 Intake AVCS (WRX 2.5L 2006-2007 / STI 2004-2007). It is available as: Left Exhaust Cam Only, Left Intake Cam Only, Right Exhaust Cam Only, Right Intake Cam Only.
Note: Check the valve spring, retainer and valve-to-piston clearance requirements for this grind. Camshafts should be installed and degreed by a qualified engine builder.
Specifications
- Engine: Subaru EJ255/EJ257 Intake AVCS (WRX 2.5L 2006-2007 / STI 2004-2007)
- Material: Billet
- Duration (intake/exhaust): 282° / 282°
- Part numbers: GSC7025S3LEX, GSC7025S3LIN, GSC7025S3REX, GSC7025s3RIN
Need help confirming the right part for your engine? Contact our team at sales@chicaneaustralia.com.au.
Product
- Part numbers
- GSC7025S3LEX, GSC7025S3LIN, GSC7025S3REX, GSC7025s3RIN
Details
- Engine
- Subaru EJ255/EJ257 Intake AVCS (WRX 2.5L 2006-2007 / STI 2004-2007)
- Material
- Billet
- Duration (intake/exhaust)
- 282° / 282°
No instructions available for this product.
Vehicle fitment
Universal fit: this part suits any car. Check the specifications above for sizes and fittings.
| Make | Model | Chassis | Years | Versions | Engine | Brakes | Position |
|---|
Can’t see your car? Ask us and we’ll check fitment for you.

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