Supertech BMW N55/S55 6mm Stem Manganese Bronze Intake Valve Guide - Set of 12

This set includes twelve Supertech manganese bronze intake valve guides, specifically made for BMW N55 and S55 engines with 6mm stem valves. These guides are crucial for proper valve operation, ensuring the valve moves smoothly within the cylinder head and maintains a good seal.

Manganese bronze is a well-known material for valve guides because it offers good wear resistance and lubricity, which helps reduce friction and heat buildup. This can lead to improved valve train longevity, especially in engines that see a lot of use or are rebuilt. The 6mm stem size is specific to certain BMW applications, so these guides are designed to fit precisely where they need to go.