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SKU: 7027S2 | UPC: GSC7027S2
GSC P-D Subaru EJ20 JDM Euro Spec STI S2 Cams 272/272 Billet 1999-2007 Impreza STI
GSC Power-Division S2 camshaft set provides 272 degree duration intake and exhaust for JDM and Euro spec Subaru EJ20 STI engines in 1999-2007 Impreza models. Billet cores support high RPM with 11.2mm lift per lobe for strong mid-range torque and top-end power in track or street applications. Dyno results confirm gains up to 25whp over stock cams while maintaining smooth idle.
Key Features
- 272° Duration: Intake and exhaust profiles deliver power from 5500 RPM with broad torque for daily or race use.
- 11.2mm (0.441") Lift: Increases valve opening for better airflow and horsepower in boosted setups.
- Billet Steel Cores: Resist flex and wear at revs over 8500 RPM and boost to 30psi.
- 110° Lobe Centers: Balance timing to minimize valve-piston clearance issues and improve overlap.
- Precision Ground Lobes: CNC machined profiles ensure accurate valve timing and durability.
Product Notes
- Not compatible with USA spec EJ20 or EJ25 engines due to head and valve differences.
- Pair with upgraded valve springs and retainers for operation above 8000 RPM.
- Ships in protective foam-lined 12x6x4 inch box.
Installation Notes
- Professional installation recommended.
- Requires timing belt removal and precise cam timing with adjustable gear set.
- Compatible with stock or aftermarket valve train on EJ207 JDM Euro heads.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2001 | Subaru | Impreza | STI Euro Spec |
| 2002-2007 | Subaru | Impreza WRX | STI JDM Spec |
| 2002-2004 | Subaru | Impreza | TS |
| 2004-2014 | Subaru | Impreza | WRX STI JDM Euro |
| 2006-2007 | Subaru | Impreza | WRX TR |
| 2002-2014 | Subaru | Impreza | WRX |
Why Choose GSC Power-Division?
- Proven in rally and drag racing with thousands of sets worldwide.
- Hand-built in USA to strict tolerances for consistent results.
- Backed by dyno data and testing on EJ20 engines.
Frequently Asked Questions
-
Q: Will these cams fit USDM Subaru STI models?
A: No designed exclusively for JDM and Euro spec EJ20 STI engines with matching heads and valves not USA EJ205 EJ255 EJ257. -
Q: What material are the camshafts made from?
A: Billet steel cores with hardened lobes for strength and resistance to high boost up to 30psi. -
Q: What is the warranty and install requirements?
A: Limited lifetime warranty on lobe failure with proper installation. Requires dual valve springs and professional timing setup.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Foam inserts in 12x6x4 inch box
- Weight: 5.6 lbs
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