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The Supertech manganese bronze exhaust valve guides for Nissan SR20DE (6 mm stem) are supplied as a set of 12 for engine rebuilds. Manganese bronze construction is specified for its suitability in exhaust applications, providing controlled valve-to-guide clearance and reliable guidance under service conditions. These guides are intended for use during cylinder head service or overhaul where matching guide material and dimensions to the SR20DE spec is required.
Supertech Nissan SR20DE Manganese Bronze Exhaust Valve Guide 6mm Stem - Set of 12
