-14%
Sold out
GSC P-D EJ Series EJ205/EJ207/EJ260 Manganese Bronze Intake Valve Guide Stopper Style - Set 8 GSC Power Division
Click to zoom in

GSC P-D EJ Series EJ205/EJ207/EJ260 Manganese Bronze Intake Valve Guide Stopper Style - Set 8

GSC3026-8
GSC3026-8
Valve Guides
Out of stock
$ 58.41 $ 49.65

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

Request For Information

Have questions about GSC P-D EJ Series EJ205/EJ207/EJ260 Manganese Bronze Intake Valve Guide Stopper Style - Set 8? Fill out the form below and we'll get back to you by the next business day.
GSC Power Division

GSC Power Division

GSC Power Division camshafts and valvetrain parts for turbocharged import engines are stocked at Black Ops Auto Works. Shop camshafts, valve springs, retainers, valves, and head studs engineered for the Toyota 2JZ, Nissan RB26 and VR38DETT, Mitsubishi 4G63, Subaru EJ257 and FA20, and Honda K20 platforms. Every product is filterable by engine code, cam grind, and application so the correct part ships the first time. Black Ops Auto Works carries 407 GSC Power Division SKUs across camshaft, valvetrain, and engine internal categories. What This Brand Covers GSC Power Division is a specialist engine internals brand focused on camshafts, valve springs, retainers, and valves engineered specifically for high output turbocharged import engines. The catalog is built around specific engine codes rather than complete vehicles, which means the same part often applies across multiple chassis that share an engine platform. Brand Focus GSC Power Division designs valvetrain components for engine...

View GSC Power Division Products
Valve Guides

Valve Guides

Valve Guides for LS, Hemi, Honda K-series and D-series, Toyota 2JZ, Subaru EJ and FA, Mitsubishi 4G63 and 4B11T, Nissan KA and VQ, BMW, Porsche, and Hyundai applications are stocked at Black Ops Auto Works. Shop bronze valve guides, manganese bronze valve guides, intake guides, exhaust guides, oversize guides, cylinder head rebuild parts, and valvetrain hardware for proven street, drag, road course, and high horsepower engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 208 valve guide SKUs across the fitments and build levels enthusiasts actually use. What Valve Guides Cover Valve guides locate the valve stem in the cylinder head so the valve seals, moves smoothly, and transfers heat correctly. This collection includes manganese bronze, bronze, standard-size, and oversize guides for performance cylinder head service. Intake and exhaust guide material Material, wall t...

View Valve Guides Products
Valves & Components

Valves & Components

Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...

View Valves & Components Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×