Supertech Manganese Bronze Intake and Exhaust Guides - 8 Intake Guides / 8 Exhaust Guides
Part Numbers: GDE-HD55-I / GDE-HD55-E
The Supertech Valve Guides are precision-machined from high quality Manganese Bronze material. These guides in combination wtih Supertech low friction black nitride valves provides the best solution for performance and durability.