Supertech Nissan SR20DET 7mm Stem Manganese Bronze .001in OS Exhaust Valve Guide - Single (D/S Only)

Supertech is a well-known name for performance engine parts, and this exhaust valve guide for the Nissan SR20DET continues that tradition. This guide is specifically designed for the exhaust side and features a 7mm stem diameter. It's made from manganese bronze, a material chosen for its good wear resistance and ability to handle the heat found in exhaust ports.

This particular valve guide is sized at .001 inch oversize (OS), which is important if you're rebuilding or refreshing an engine where the original guides might be worn beyond standard tolerances. Using an oversize guide ensures a proper fit and function for your valve stem, helping to maintain good compression and prevent oil from entering the combustion chamber.