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SKU: 2014-01 | UPC: GSC2014-01
GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve - 37mm Head (+1mm) - Single Fits 1999-2015 Impreza WRX STI
GSC Power-Division chrome polished intake valve delivers a 37mm head diameter (+1mm over stock) for Subaru EJ205 EJ207 and EJ257 engines. It fits 1999-2015 Subaru Impreza WRX STI models plus select Saab 9-2X delivering higher airflow for power gains. The single valve design with advanced stem finishing resists wear in high boost setups.
Key Features
- 37mm Head (+1mm): Increases airflow into cylinders supporting higher RPM power
- Chrome Polished Stem: Transfers heat efficiently to guide and seat reducing friction and wear
- One-Piece Forged Steel: 21-4N stainless construction handles extreme boost and heat cycles
- 7.00mm Stem (6.98mm tip): Direct OEM-spec fit with 113.74mm overall length for drop-in install
- Swirl Polished Head: Smooths flow paths minimizing turbulence for efficient combustion
Product Notes
- Sold individually order 8 for complete EJ20 or EJ25 turbo intake set
- Pair with GSC valve seals for leak-free operation
- Box dimensions 6in x 4in x 1in protects during transit
Installation Notes
- Professional installation recommended.
- Valve length 113.74mm matches stock EJ heads no machining needed
- Compatible with OEM or GSC beehive springs check installed height
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2005 | Subaru | Impreza | RS |
| 2002-2004 | Subaru | Impreza | TS |
| 2002-2014 | Subaru | Impreza | WRX |
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2005-2011 | Subaru | Impreza | Outback Sport |
| 2005 | Saab | 9-2X | Aero |
| 2006-2011 | Subaru | Impreza | 2.5i |
| 2009-2010 | Subaru | Impreza | 2.5 GT |
| 2010-2011 | Subaru | Impreza | 2.5i Premium |
| 2010-2014 | Subaru | Impreza | WRX Limited |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2012-2014 | Subaru | Impreza | Premium |
| 2012-2014 | Subaru | Impreza | Sport Limited |
| 2012-2014 | Subaru | Impreza | Sport Premium |
| 2012-2014 | Subaru | Impreza | Base |
| 2012-2014 | Subaru | Impreza | Limited |
| 2015 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015 | Subaru | WRX STI | Limited |
Why Choose GSC Power-Division?
- Engineered for motorsport use in WRX STI race programs
- Precision CNC machined for consistent performance
- Backed by real-world testing on dyno and track
Frequently Asked Questions
-
Q: Will this valve fit 2004-2014 Subaru Impreza WRX STI EJ257 heads?
A: Yes direct replacement with 37mm head and 113.74mm length for stock or ported heads -
Q: What finish and material details?
A: Forged 21-4N stainless steel with chrome polished stem and swirl polished head for flow and heat management -
Q: What about warranty and install?
A: Lifetime warranty against defects professional install ensures proper spring pressure and sealing
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective sleeve in 6 x 4 x 1 inch box
- Weight: 0.15 lbs
GSC Power Division
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