Supertech Performance GDE-SUEJ6-I-8 Manganese Bronze Intake Valve Guides Set for Subaru EJ20/EJ25 6mm Stem

Supertech Performance valve guides are precision-machined from high-quality manganese bronze material, engineered to deliver superior strength and heat dissipation compared to OEM guides.

Key Features:

• Precision-machined from high-quality manganese bronze for enhanced durability
• 6mm valve stem diameter for proper valve fitment
• Standard outer diameter of 11.08mm
• 39.5mm length optimized for intake valve applications
• Superior heat dissipation properties extend valve life
• Designed to work with low-friction black nitrided valves for optimal performance

These valve guides are engineered for racing and high-performance applications including drag racing, rally, road racing, and street performance builds. The manganese bronze construction provides excellent wear resistance and thermal management, making them stronger and more durable than stock guides while helping to pull heat away from valves during high-stress operation.