Supertech Performance GDE-MI66-STE-8 Exhaust Valve Guide Set for Mitsubishi 4G63 - 6.6mm Stem

These guides are essential components that conduct heat from the exhaust valves into the cylinder head while maintaining proper valve alignment and oil control.

Premium Manganese Bronze Construction:

• Precision-machined from high-quality manganese bronze material for superior durability
• 12.07mm outer diameter with 6.6mm valve stem clearance
• Standard outer diameter sizing for OEM cylinder head bores
• Engineered for optimal thermal transfer and heat dissipation

Performance Features:

• Designed to work in combination with Supertech's black nitrided valves for maximum performance
• Low friction design reduces valve stem wear and extends service life
• Superior thermal conductivity helps manage exhaust valve temperatures
• Compatible with valve seals VS-M6.6-E or VS-H6.6-E

Note that intake and exhaust guides are different specifications - this is the exhaust-specific version.

Perfect for engine rebuilds, performance upgrades, or racing applications where reliability and heat management are critical. These guides meet or exceed OEM specifications while offering enhanced durability for high-performance and motorsport applications.