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The Supertech exhaust valve set of 8 features black-nitrided triple-groove stems sized 32.5 x 6.95 x 126.10 mm, intended for exhaust applications that use three-ring valve seals. The nitrided surface increases hardness and wear life at the guide interface. Supplied as a matched set of eight, these valves are specified for BMW S14 engines requiring triple-groove, nitrided exhaust components.
Supertech BMW S14 32.5 x 6.95 x 126.10mm Blk Nitrided Triple Groove Exhaust Valve - Set of 8
