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SKU: 3089.001-1
GSC Power-Division BMW 335i E92 2007-2013 L6 Manganese Bronze Exhaust Valve Guide Stopper Style +.001in OD - Single
GSC Power-Division manganese bronze exhaust valve guide delivers reliable performance for BMW 335i E92 models with N54 or N55 L6 engines from 2007 to 2013. This stopper-style guide with +0.001in outer diameter corrects minor bore wear for tight valve stem clearance and extended durability under high heat. Ideal for engine rebuilds racing applications and performance upgrades.
Key Features
- Manganese Bronze Material: Provides high wear resistance thermal conductivity and strength to withstand exhaust gas temperatures over 1500°F
- +0.001in OD Oversize: Fits slightly worn cylinder head bores for optimal valve stem to guide clearance without reaming
- Stopper Style Design: Integrated lip controls installation depth for consistent valve train geometry and easy press-in setup
- Precision CNC Machined: Ensures interference fit tolerances of ±0.0005in for drop-in reliability on stock or ported heads
- Single Guide Sold Individually: Allows targeted replacement in high-mileage or damaged exhaust positions
Product Notes
- Compatible with GSC performance valves and springs for full valvetrain refresh
- Inspect cylinder head guide bores before installation using go/no-go gauges
- Packaged in anti-static protective sleeve to prevent contamination
Installation Notes
- Professional installation recommended.
- Use valve guide driver tool and arbor press with heat block for removal and insertion
- Compatible with OEM or aftermarket BMW N54/N55 cylinder heads no hardware required
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2013 | BMW | 335i | E90 Sedan |
| 2007-2013 | BMW | 335i | E92 Coupe |
| 2008-2013 | BMW | 135i | E82 Coupe |
| 2008-2013 | BMW | 135i | E88 Convertible |
| 2009-2013 | BMW | Z4 | sDrive35i |
| 2011-2013 | BMW | 335i | E93 Convertible |
| 2011-2016 | BMW | 335is | E92 Coupe |
Why Choose GSC Power-Division?
- Proven in NHRA drag racing and endurance events worldwide
- Manufactured in USA with aerospace-grade quality control
- Engineered specifically for BMW N54/N55 direct replacement
Frequently Asked Questions
-
Q: Will this valve guide fit both N54 and N55 engines in the BMW 335i E92?
A: Yes it matches OEM dimensions for both N54 2007-2010 and N55 2011-2013 L6 engines in E92 335i and compatible chassis -
Q: Why manganese bronze over other materials?
A: Manganese bronze resists galling wear and leaded fuels while offering 20% higher tensile strength than phosphor bronze for exhaust side longevity -
Q: What tools are needed for installation?
A: GSC recommends a 11.5mm guide driver freeze plug installer and bore gauge set professional shop press preferred
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective sleeve in 6x4x1 inch box
- Weight: 0.1 lbs
GSC Power Division
GSC Power Division is a manufacturer of precision-engineered camshafts, valve springs, and valvetrain components designed for high-performance and competition engines across domestic, import, and diesel platforms. Founded by engineers with deep roots in motorsport, GSC Power Division components are machined to exacting tolerances and heat-treated to survive the demands of forced induction and high-rpm applications that destroy stock valvetrain parts. The brand is particularly well-known in the Mitsubishi Evo, Subaru STI, Nissan RB, and Toyota 2JZ communities where aggressive camshaft profiles are essential for extracting maximum power from turbocharged four-cylinder and six-cylinder engines. Whether building for drag racing, road course competition, or a high-powered street car, GSC Power Division camshafts and valve springs are a proven upgrade path. Popular Upgrades GSC Power Division S1, S2, and S3 camshafts are the most popular selections, with each profile offering progressivel...
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