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SKU: 3011-8 | UPC: GSC3011-8
GSC P-D 4B11T Manganese Bronze Exhaust Valve Guide - Set 8 for 2008-2015 Mitsubishi Lancer Evolution X & Ralliart
GSC Power-Division manganese bronze exhaust valve guides come as a set of 8 for the 4B11T engine in 2008-2015 Mitsubishi Lancer Evolution X and 2009-2015 Lancer Ralliart models. These guides ensure reliable valve stem alignment and sealing under high exhaust temperatures from turbocharging. Ideal for engine rebuilds or performance upgrades needing consistent operation at high RPM.
Key Features
- Manganese Bronze Construction: Resists wear from hot exhaust gases and provides effective heat transfer to maintain valve stability in boosted 4B11T applications
- Precision Dimensions: Inner diameter 8mm outer diameter 13mm length 47.5mm matches factory 4B11T cylinder head specs for drop-in installation
- Complete Set of 8: Covers all exhaust valves for full cylinder head refresh without mismatched parts
- High RPM Durability: Engineered to handle extreme boost levels and sustained high revs common in Evo X drag or track setups
- Smooth Bead Blast Finish: Reduces friction for smoother valve action and longer seal life during break-in
Product Notes
- Pair with new valve seals for optimal oil control during installation
- Inspect cylinder head for wear before guide replacement
- Packages securely to prevent damage in transit
Installation Notes
- Professional installation recommended.
- Use GSC valve guide driver tool or equivalent for even pressing into aluminum head
- Compatible with stock 4B11T heads and most aftermarket ported heads no machining required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2015 | Mitsubishi | Lancer Evolution | GSR MR SE |
| 2009-2015 | Mitsubishi | Lancer | Ralliart |
| 2010-2011 | Mitsubishi | Lancer | Ralliart Sportback |
Why Choose GSC Power-Division?
- Proven in professional racing with Evo teams worldwide
- Manufactured to exacting tolerances in the USA
- Focus on valvetrain reliability for 4B11T performance builds
Frequently Asked Questions
-
Q: Will these fit my 2008-2015 Evo X GSR?
A: Yes direct fit for all 4B11T-equipped Lancer Evolution X models including GSR MR and SE trims -
Q: Why manganese bronze for exhaust guides only?
A: Manganese bronze excels at dissipating exhaust heat up to 1000F while resisting galling on exhaust valve stems -
Q: What is the warranty on these guides?
A: GSC offers a one-year limited warranty against manufacturing defects contact support for claims
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact protective box 5in x 3in x 1in
- Weight: 0.4 lbs
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