GSC S1 Billet Camshaft Set – Subaru WRX EJ205 Version 5/6 (GSC7020S1)
Turbo-Friendly Cam Upgrade for EJ205 Builds
The GSC Power-Division S1 Billet Camshaft Set is designed for Subaru EJ205 engines in WRX Version 5 and 6. These cams are engineered to maintain low-end drivability while improving turbo spool, midrange torque, and overall power delivery. Ideal for stock turbo setups or builds targeting up to 500 WHP.
High RPM Ready – Valve Springs Required
To ensure safe operation at elevated RPMs, upgraded valve springs are required. These cams are a perfect match for street-driven cars that want more response without sacrificing daily usability.
Camshaft Identification
Refer to product images for cam placement:
Long nose = Left Side
Short nose = Right Side
Camshaft Specifications
| Camshaft | ADV Duration | Duration @ 0.040" | Peak Lift | Center Line |
|---|---|---|---|---|
| Intake | 266° | 225° | 9.60mm | 110° |
| Exhaust | 266° | 224° | 9.60mm | 113° |
Fitment Guide
- 1999–2001 Subaru WRX 2.0L Turbo DOHC (EJ205 Version 5/6)
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