GSC Power Division
GSC P-D Subaru EJ257 w/Dual AVCS S1 Cams 266/264 Billet - 7026S1
- SKU:
- GSC7026S1
- UPC:
- GSC7026S1
- MPN:
- 7026S1
- Availability:
- Regularly stocked product
Description
What is the ideal fuel for GSC Billet S1 Camshaft Kits?
GSC Billet S1 Camshafts are engineered for premium pump gasoline, maximizing performance gains without requiring race fuel.
Can I install these camshafts myself?
Professional installation is strongly recommended for GSC Billet S1 Camshaft Kits to ensure optimal performance and durability.
GSC Billet S1 Camshaft Kits are specifically designed for Subaru EJ257 engines with Dual AVCS, delivering substantial power increases as indicated by their 9/10 engine performance score. Featuring 266/264 billet specifications, these camshafts unlock exhilarating acceleration and sharp throttle response. Trust GSC Power Division for ultimate Subaru performance upgrades.
What Owners Say
Owners and enthusiasts consistently praise GSC Power Division's billet camshaft kits for delivering reliable performance gains, particularly on Evolution X builds ranging from stock turbos up to 550hp setups. The Stage 1 cams earn recognition for their proven design and quality construction that complements both mild and moderately aggressive builds. While some users have encountered timing issues with aftermarket cam gear housings from other manufacturers when paired with these cams, the GSC camshafts themselves maintain a solid reputation for fitment and durability. The kits have established themselves as a trusted choice among the Mitsubishi tuning community for predictable power delivery and long-term reliability.
Key Features
- GSC P-D Subaru EJ257 w/Dual AVCS S1 Cams
- 266/264 Billet
Why Choose the GSC Billet S1 Camshaft Kits
Unleash explosive power gains across the entire RPM range for exhilarating acceleration.
Achieve a more aggressive, race-inspired engine note that commands attention.
Experience sharper throttle response and immediate power delivery when you demand it.
Transform your Subaru's engine into a high-performance powerhouse built for the track.
Who Is This For?
Street Performance — 8/10
Designed for power and torque increases.
Track / Autocross — 8/10
Enhances performance for competitive driving.
Drag Racing — 8/10
Aims for significant power and torque gains.
Racing Competition — 8/10
Premium performance camshafts for racing.
Engine Performance — 9/10
Billet camshafts deliver significant power increases.
Exhaust Note / Sound — 7/10
Performance cams often alter exhaust sound.
Frequently Asked Questions
What kind of camshaft is best for my 2008-2016 Subaru Impreza/WRX STI?
GSC Billet S1 Camshafts are an excellent choice for your Subaru Impreza/WRX STI. These 266/264 billet camshafts are specifically designed for the EJ257 engine with Dual AVCS. You can expect a transformative performance upgrade for your vehicle.
What are the performance benefits of the GSC Billet S1 Camshafts?
Unleashing explosive power gains across the entire RPM range is a key benefit of these camshafts. Achieving an "Engine Performance" usage score of 9, they transform your Subaru's engine into a high-performance powerhouse built for demanding driving.
Can I install the GSC Billet S1 Camshaft Kit myself?
Professional installation is recommended for the GSC Billet S1 Camshaft Kits. Confirming with a qualified technician ensures the precise fitment and optimal performance for your 2008-2016 Subaru Impreza/WRX STI. This approach guarantees a successful upgrade.
What type of driving are the GSC Billet S1 Camshafts best suited for?
These camshafts are best for enthusiasts seeking maximum engine performance for track or spirited street driving. With a "Street Performance" and "Track / Autocross" usage score of 8, they excel in delivering exhilarating acceleration and track-ready capabilities.
Vehicle Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008–2014 | Subaru | Impreza | WRX STI |
| 2015–2016 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015–2016 | Subaru | WRX STI | Limited |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
Additional Resources
Important Notices
⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Browse More: Shop All Camshafts — Engine Components
Warranty Information
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2015-2016 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2016 | Subaru | WRX STI | Limited |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Case Lot Quantity: |
1 |
Category: |
Engine Components>Camshafts |
Clearance Item: |
N |
MPN: |
7026S1 |
Proposition 65: |
Y |
Product Level: |
Premium Performance |
Street Performance: |
8/10 |
Track / Autocross: |
8/10 |
Drag Racing: |
8/10 |
Racing Competition: |
8/10 |
Engine Performance: |
9/10 |
Exhaust Note / Sound: |
7/10 |
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