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The Supertech manganese bronze exhaust valve guide set for Nissan SR20DET applications is a direct-replacement guide with a 6mm stem, supplied as a set of eight. These guides serve the exhaust side by supporting valve stem alignment and providing a replaceable wearing surface in the head. Manganese bronze construction and the SR20DET fitment are specified in the item description.
Supertech Nissan SR20DET Manganese Bronze Exhaust Valve Guide 6mm Stem - Set of 8
