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Supertech manganese bronze exhaust valve guides for Honda NSX are supplied as a set of 12 and accept a 5.5mm valve stem. These direct-fit guides restore proper valve stem alignment and sealing in NSX cylinder heads during engine rebuilds or maintenance. The listing specifies stem diameter and material to help ensure correct selection for compatible NSX applications.
Supertech Honda NSX Manganese Bronze Exhaust Valve Guide 5.5mm Stem - Set of 12
