This Supertech exhaust valve set of 12 includes flat, black-nitrided valves sized 33(+1) x 6.95 x 126.10 mm for matched bank replacement. The larger flat head dimension addresses particular combustion chamber and seat profiles while nitriding enhances wear resistance. Supplied as a 12-piece set, these valves are intended for BMW S14 engines needing a full complement of larger flat, nitrided exhaust valves.
Supertech BMW S14 33(+1)x6.95x126.10mm Flat Black Nitrided Exhaust Valve - Set of 12