-15%
Click to zoom in
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
Camshafts
Quality camshafts components make a real difference in how your vehicle performs and holds up over time. Black Ops Auto Works stocks a full range of camshafts parts from leading aftermarket brands, all available with fast shipping so you can get back on the road quickly.Popular UpgradesPopular camshafts upgrades include performance replacements that outlast factory components, direct-fit options for easy installation, and premium materials engineered for demanding conditions. Whether you need a single replacement or a complete kit, we have options across multiple price points.What should I look for when buying camshafts parts?Look for parts made from high-grade materials like stainless steel, billet aluminum, or reinforced polymers depending on the application. OEM-spec fitment ensures no modification is needed, and brand reputation matters for warranty support and long-term reliability.Do camshafts upgrades affect vehicle warranty?Under the Magnuson-Moss Warranty Act, installing af...
View Camshafts Products
Camshafts & Components
Quality camshafts & components make a real difference in how your vehicle performs and holds up over time. Black Ops Auto Works stocks a full range of camshaft components from leading aftermarket brands, all available with fast shipping so you can get back on the road quickly.Popular UpgradesPopular camshaft component upgrades include performance replacements that outlast factory components, direct-fit options for easy installation, and premium materials engineered for demanding conditions. Whether you need a single replacement or a complete kit, we have options across multiple price points.What should I look for when buying camshafts & components parts?Look for parts made from high-grade materials like stainless steel, billet aluminum, or reinforced polymers depending on the application. OEM-spec fitment ensures no modification is needed, and brand reputation matters for warranty support and long-term reliability.Do camshaft component upgrades affect vehicle warranty?Under ...
View Camshafts & Components Products
Engine
Shop engine parts, oil catch cans, engine cooling upgrades, thermostats, thermostat housings, radiators, coolant accessories, supercharger pulleys, idler pulleys, tensioner pulleys, throttle bodies, engine covers, fuse box covers, cap covers, valve covers, oil system parts, ignition parts, sensors, gaskets, fuel delivery parts, and engine bay dress-up accessories at Black Ops Auto Works. This collection is built for performance vehicles, trucks, SUVs, muscle cars, boosted builds, HEMI platforms, Hellcat builds, Trackhawk SUVs, RAM TRX trucks, LS-powered builds, and high-horsepower street or track applications. Whether you are improving oil control, reducing heat soak, upgrading cooling, supporting higher boost, cleaning up the engine bay, replacing worn engine components, or preparing a street car for harder driving, this collection helps you shop engine parts by brand, category, vehicle platform, and performance goal. Shop Engine Parts by Category Browse engine upgrades and replace...
View Engine Products
GSC Power Division
GSC Power Division is a manufacturer of precision-engineered camshafts, valve springs, and valvetrain components designed for high-performance and competition engines across domestic, import, and diesel platforms. Founded by engineers with deep roots in motorsport, GSC Power Division components are machined to exacting tolerances and heat-treated to survive the demands of forced induction and high-rpm applications that destroy stock valvetrain parts. The brand is particularly well-known in the Mitsubishi Evo, Subaru STI, Nissan RB, and Toyota 2JZ communities where aggressive camshaft profiles are essential for extracting maximum power from turbocharged four-cylinder and six-cylinder engines. Whether building for drag racing, road course competition, or a high-powered street car, GSC Power Division camshafts and valve springs are a proven upgrade path. Popular Upgrades GSC Power Division S1, S2, and S3 camshafts are the most popular selections, with each profile offering progressivel...
View GSC Power Division Products