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SKU: BC3134
Brian Crower Mitsubishi 4B11T Evolution X 35mm Intake Valves 2008-2015 Lancer Evo X
Brian Crower BC3134 intake valves feature a 35mm diameter for the Mitsubishi 4B11T engine in 2008-2015 Lancer Evolution X models. This set of 8 one-piece forged valves delivers increased airflow over stock 34mm valves to support higher boost and RPM. Direct replacement design ensures reliable performance in street and track builds.
Key Features
- One-Piece Forged Construction: Delivers high strength and fatigue resistance for turbocharged 4B11T engines running up to 40 psi boost
- 35mm Valve Head Diameter: Increases intake flow by 10 percent over OEM for better cylinder filling and power gains
- 89 Gram Valve Weight: Lightens valvetrain mass by 15 percent to allow higher revs without spring upgrades
- Swirl Polished Finish: Reduces stem friction and guide wear for longer valve life under extreme conditions
- Precise Dimensions: 110.60mm length, 5.96mm stem, 10mm reduced tip, 2.75mm dish matches Evo X head specs
Product Notes
- Set includes 8 intake valves only, exhaust valves sold separately
- Valve seats must be machined to accept 35mm oversize heads
- Ships in protective foam-lined box to prevent damage
Installation Notes
- Professional installation recommended.
- Full valve job required including 3-angle seat cut for proper sealing
- Compatible with stock or aftermarket retainers, springs, and seals
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Mitsubishi | Lancer | Evolution GSR |
| 2008 | Mitsubishi | Lancer | Evolution MR |
| 2010-2011 | Mitsubishi | Lancer | Evolution MR Touring |
| 2010-2015 | Mitsubishi | Lancer | Evolution GSR |
| 2010-2015 | Mitsubishi | Lancer | Evolution MR |
| 2015 | Mitsubishi | Lancer | Evolution Final Edition |
Why Choose Brian Crower?
- Race-proven in professional drag and time attack Evo X builds
- CNC-machined in Southern California with tight tolerances
- Backed by engineering focused on 4G turbo engine durability
Frequently Asked Questions
-
Q: Will BC3134 fit all 4B11T Evo X models?
A: Yes, designed for 2008-2015 Lancer Evolution X GSR, MR, MR Touring, and Final Edition with 4B11T engines -
Q: What material are these valves made from?
A: One-piece forged 4340 chromoly steel construction for heat resistance up to 1200 degrees F -
Q: What warranty is included?
A: One-year unlimited mileage manufacturer warranty against defects when installed by certified shop
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: 7 x 5 x 3 inch foam-lined box
- Weight: 1.8 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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