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SKU: 3057-12
GSC P-D Porsche 996/997 Turbo Manganese Bronze STD Style Exhaust Valve Guide - SET OF 12
GSC Power-Division Manganese Bronze exhaust valve guides deliver direct replacement performance for Porsche 996 and 997 Turbo models with Mezger engines. This set of 12 covers all exhaust valves on the flat-six DOHC setup providing essential support for high-boost and high-RPM operation. Engineered for precision fit these guides resist wear in demanding turbocharged conditions.
Key Features
- Manganese Bronze Material: Withstands extreme exhaust temperatures and boost pressures while offering superior wear resistance over extended service intervals
- STD Style Design: Matches factory outer diameter specifications for drop-in compatibility without machine work on cylinder heads
- Set of 12: Complete coverage for all 12 exhaust valves in Porsche 911 Turbo Mezger flat-six engines simplifying rebuilds
- Precision Machining: Tight tolerances ensure optimal valve stem alignment sealing and guidance reducing oil consumption and improving power delivery
- Performance Focused: Built for racing and street turbo applications supporting increased valve lift spring pressures and RPM limits
Product Notes
- Confirm Mezger engine code prior to purchase as guides are specific to turbocharged 911 variants
- Inspect valve seats and seals during installation for best results
- Arrives in protective case to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Use dedicated valve guide puller and driver tools for removal and seating
- Fits stock or ported Porsche cylinder heads without modification
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2005 | Porsche | 911 | Turbo |
| 2001-2005 | Porsche | 911 | GT2 |
| 2003-2005 | Porsche | 911 | GT2 (3.6L) |
| 2007-2009 | Porsche | 911 | Turbo (997.1) |
| 2007-2009 | Porsche | 911 | GT2 (997.1) |
| 2010-2012 | Porsche | 911 | Turbo (997.2) |
| 2010-2012 | Porsche | 911 | Turbo S (997.2) |
| 2011 | Porsche | 911 | GT2 RS (997.2) |
Why Choose GSC Power-Division?
- Proven in professional racing teams and Porsche builds worldwide
- Specializes in high-performance valvetrain components with real-world testing
- Crafted with advanced metallurgy and CNC processes for consistent quality
Frequently Asked Questions
-
Q: Will these fit Porsche 997 GT3 models?
A: No these are designed exclusively for 996/997 Turbo and GT2 models equipped with the Mezger flat-six turbo engine GT3 uses a different NA engine configuration -
Q: Why Manganese Bronze over other materials?
A: Manganese Bronze provides exceptional high-temperature strength galling resistance and longevity specifically suited to exhaust side heat in turbo Porsche applications -
Q: Is special machining required for installation?
A: No STD style matches OEM dimensions for direct fit after stock guide removal professional installers often pair with new valve seals
Shipping & Handling
- Method: Standard Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-lined box 6x4x2 inches
- Weight: 0.4 lbs
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