Supertech Performance Bronze Intake Valve Guides for the Honda - Acura K Series (K20 & K24) Engines
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Supertech Performance Bronze Intake Valve Guides for the Honda / Acura K Series (K20 & K24) Engines GDE-HK55-I - Supertech Performance Intake Valve Guide Honda / Acura K20, K20A, K20A2, K20A3, K20Z1, K20Z3, K24A2, K24A4, K24A8 Fitment. Precision-machined from High Quality Manganese Bronze material. These guides in combination with our low friction Black Nitride Valves provides the best solution for performance and durability. Exhaust guides for high powered engines that need a better thermal transfer coefficient, We use a Copper Alloy. Copper has about 3 times higher thermal transfer than Manganese Bronze.