Supertech Performance GDE-MEVOX-OS Oversized Exhaust Valve Guide Magnesium Bronze

The Supertech Performance GDE-MEVOX-OS is an oversized exhaust valve guide precision-machined from high-quality Magnesium Bronze alloy. Designed for performance and durability, Supertech valve guides deliver exceptional dimensional accuracy and long service life in demanding engine applications.

For high-powered exhaust applications requiring superior thermal management, Supertech utilizes a copper alloy construction that offers approximately 3× greater thermal transfer compared to standard Manganese Bronze. This improved heat dissipation helps protect the valve stem and surrounding components under extreme operating conditions.

Key Features:

• Precision-machined from high-quality Magnesium Bronze material
• Copper alloy used for exhaust guides — approximately 3× better thermal transfer than Manganese Bronze
• Oversized fitment for worn or re-bored guide bores
• Compatible with low-friction nitrided valves for optimal performance pairing
• Ideal for high-performance, high-output engine builds
• Sold individually — order the exact quantity needed (e.g., order 16 for a 16-valve engine)

Supertech Performance valve guides are engineered for racers, engine builders, and performance enthusiasts who demand precise tolerances and reliable performance. The GDE-MEVOX-OS oversized guide is the correct choice when reboring the cylinder head to restore proper valve-to-guide clearance.