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SKU: 2011-01 | UPC: GSC2011-01
GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Exhaust Valve - 32mm Head (STD) - Single Fits 1999-2015 Impreza WRX STI
The GSC P-D Chrome Polished Exhaust Valve features a 32mm standard head diameter for Subaru EJ205 EJ207 and EJ257 engines in Impreza WRX and STI models from 1999 to 2015 including Saab 9-2X. This single valve uses one-piece forged construction to handle high RPM and boost power output through improved exhaust flow. Engine builders choose it for reliable heat management and long service life in turbocharged applications.
Key Features
- One-piece forged 21-4N stainless steel: Delivers high strength and fatigue resistance for demanding race and street use
- Chrome polished stem 6.95mm diameter: Transfers heat efficiently to valve guides reducing wear and maintaining valve train stability
- 32mm STD head diameter 111.85mm length: Direct OEM replacement ensures precise fit in EJ205 EJ207 EJ257 cylinder heads
- Swirl polished head with tip grind: Increases exhaust flow velocity for quicker spool and sharper throttle response
- Reduced tip design: Promotes better sealing and compatibility with stock or aftermarket valve seats
Product Notes
- Sold individually order eight for a complete engine set
- Check valve guide condition and clearance before install
- Packaged in protective sleeve to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Valve lash adjustment required after install per service manual specs
- Compatible with stock retainers springs and OEM head hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2005-2011 | Subaru | Impreza | Outback Sport |
| 2012-2014 | Subaru | Impreza | Premium |
| 1999-2005 | Subaru | Impreza | RS |
| 2012-2014 | Subaru | Impreza | Sport Limited |
| 2012-2014 | Subaru | Impreza | Sport Premium |
| 2002-2004 | Subaru | Impreza | TS |
| 2002-2014 | Subaru | Impreza | WRX |
| 2005 | Saab | 9-2X | Aero |
| 2009-2010 | Subaru | Impreza | 2.5 GT |
| 2006-2011 | Subaru | Impreza | 2.5i |
| 2010-2011 | Subaru | Impreza | 2.5i Premium |
| 2012-2014 | Subaru | Impreza | Base |
| 1999-2001 | Subaru | Impreza | L |
| 2012-2014 | Subaru | Impreza | Limited |
| 1999-2004 | Subaru | Impreza | Outback |
| 2006-2007 | Subaru | Impreza | WRX Limited |
| 2010-2014 | Subaru | Impreza | WRX Limited |
| 2009-2014 | Subaru | Impreza | WRX Premium |
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2006-2007 | Subaru | Impreza | WRX TR |
| 2015 | Subaru | WRX STI | Base |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015 | Subaru | WRX STI | Limited |
Why Choose GSC?
- Proven in professional drag and rally racing worldwide
- Manufactured with micrometer precision for consistent performance
- Backed by extensive testing on dyno and track
Frequently Asked Questions
-
Q: Does this valve fit 2004-2007 Subaru Impreza WRX STI EJ257 heads?
A: Yes this 32mm STD valve matches factory specs for all EJ257 exhaust positions in 2004-2014 STI models. -
Q: What finish and material does the stem use?
A: Chrome polished finish on 6.95mm stem made from forged 21-4N stainless steel for heat resistance and low friction. -
Q: What warranty applies and is professional install required?
A: GSC provides limited lifetime warranty on defects professional installation recommended to maintain coverage.
Shipping & Handling
- Method: UPS Ground or USPS Priority Mail
- Availability: In stock - ships same or next business day
- Packaging: Protective sleeve in 6 x 4 x 1 inch box
- Weight: 0.1 lbs
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