SKU: 3026-8
GSC P-D EJ Series EJ205/EJ207/EJ260 Manganese Bronze Intake Valve Guide Stopper Style - Set 8
Engineered by GSC Power-Division these manganese bronze intake valve guides in stopper style deliver direct replacement for EJ205 EJ207 EJ260 engines in Subaru Impreza WRX STI models from 1999 to 2015 plus Saab 9-2X Aero. Manganese bronze construction offers superior wear resistance and heat dissipation for reliable performance in turbocharged and high-rev builds. Set of 8 ensures complete intake valve coverage for engine rebuilds and upgrades.
Key Features
- Manganese Bronze Material: High-lead content alloy beds in quickly reduces friction dissipates heat faster than steel extending guide and valve life in demanding conditions
- Stopper Style Design: Built-in flange holds guides square in head prevents spinning or migration under extreme valve train loads
- Precision CNC Machined: .505 inch ID matches OEM specs for perfect valve stem fit with tolerances under 0.001 inch for seamless operation
- Complete Set of 8: Covers all intake positions on EJ25 SOHC DOHC heads for full valvetrain refresh
- Performance Engineered: Proven in racing applications handles higher boost RPM and temperatures without failure
Product Notes
- Direct OEM replacement no head modifications needed
- Pair with GSC valve seals for optimal oil control
- Packed in protective tube to prevent damage
Installation Notes
- Professional installation recommended.
- Remove old guides with press and hone seats to 0.001-0.003 inch clearance.
- Use GSC guide driver tool 9005 for straight pressing to depth.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 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 |
| 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 |
| 2006-2007,2010-2014 | Subaru | Impreza | WRX Limited |
| 2009-2014 | Subaru | Impreza | WRX Premium |
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007,2011-2014 | 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 Power-Division?
- Valvetrain leader supplying Formula Drift Pikes Peak champions
- USA manufactured with aerospace-grade machining
- Rigorously dyno track tested for EJ reliability
Frequently Asked Questions
-
Q: Will this fit EJ257 WRX STI heads?
A: Yes EJ257 shares identical intake guide bore and stem specs with EJ205 EJ207 EJ260 for plug-and-play compatibility -
Q: Why manganese bronze over other materials?
A: Manganese bronze embeds debris better conducts heat 3x faster than steel and self-lubricates reducing wear at high RPM -
Q: What warranty coverage?
A: Lifetime warranty against manufacturing defects when installed by certified shop with proof of proper honing
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective plastic tube in 6 x 4 x 1 inch box
- Weight: 0.4 lbs
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