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SKU: BC3915
Brian Crower Valve Guides - 5.5mm Mitsubishi 4B11T 2008-2015 / Hyundai G4KF 2010-2014 Exhaust (Quantity of 8)
Brian Crower BC3915 valve guides deliver precise fitment for exhaust valves in Mitsubishi 4B11T engines from 2008-2015 Lancer Evolution X models and Hyundai G4KF engines in 2010-2014 Genesis Coupe 2.0T. These guides support high-performance rebuilds by maintaining tight valve stem clearances under extreme heat and RPM. A set of 8 covers all exhaust positions for complete cylinder head refresh.
Key Features
- Manganese Bronze Construction: Resists wear and galling while providing excellent heat dissipation for sustained high-boost operation
- 5.5mm Inner Diameter: Matches OEM exhaust valve specs for 4B11T and G4KF ensuring proper stem alignment and sealing
- Set of 8 Pieces: Exact quantity needed for full exhaust valve coverage on compatible 4-cylinder heads
- Direct OEM Replacement: Engineered to install into stock or ported heads without modifications
- High-RPM Durability: Handles 8000+ RPM and 500+ whp builds common in Evo X and Genesis tuning scenes
Product Notes
- Exhaust side only, pair with BC3914 for intake guides
- Inspect valve seats during installation for proper guide height
- Packed in protective tube to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Requires hydraulic valve guide press and pilot tools for accurate seating
- Compatible with multi-angle valve job machines and stock head castings
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2015 | Mitsubishi | Lancer | Evolution X (MR, GSR, Final Edition) |
| 2010-2014 | Hyundai | Genesis Coupe | 2.0T (Base, Track) |
Why Choose Brian Crower?
- Proven in drag racing and time attack builds for 4B11T and G4KF platforms
- Manufactured with tight tolerances from premium bronze alloys
- Backed by engineering focused on turbocharged 4-cylinder reliability
Frequently Asked Questions
-
Q: Will these fit 2007 or 2016 Evo X models?
A: Designed for 2008-2015 USDM 4B11T engines only, confirm your head casting matches -
Q: What material are the guides made from?
A: Manganese bronze for optimal strength, lubricity, and thermal conductivity in performance applications -
Q: Is there a warranty on these valve guides?
A: Covered under Brian Crower defect policy for manufacturing issues, retain receipt for claims
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Secure OEM box 6 x 4 x 2 inches
- Weight: 0.5 lbs
Brian Crower
Brian Crower produces high-performance camshafts, connecting rods, valve springs, and valvetrain components for turbocharged and naturally aspirated engine builds. Their Stage 2 and Stage 3 cam profiles and titanium retainers are widely used in Honda, Subaru, and Nissan performance builds. Popular Brian Crower ProductsBrowse the full Brian Crower catalog to find the right upgrade for your application. Every product ships fast with fitment verified against manufacturer specifications. What engines does Brian Crower specialize in?Brian Crower makes camshafts, valve springs, and connecting rods for Honda K-series and B-series, Subaru EJ and FA engines, Mitsubishi 4G63, Nissan SR20 and VQ engines, and other popular performance platforms. What is the difference between Brian Crower Stage 2 and Stage 3 cams?Brian Crower Stage 2 cams offer increased lift and duration over stock for improved mid-range and top-end power while maintaining street driveability. Stage 3 cams are designed for ful...
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