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The Supertech manganese bronze exhaust valve guide for Nissan SR20DET is a single replacement sized for a 7mm stem with a .001in oversize, offered as a drop-ship item. Intended for focused head work or valve service, this guide restores correct stem clearance and helps ensure stable valve seating and consistent exhaust valve motion in SR20DET engines.
Supertech Nissan SR20DET 7mm Stem Manganese Bronze .001in OS Exhaust Valve Guide - Single (D/S Only)
