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Supertech steel retainer for BMW N54 exhaust valves specified at 7° for a 6mm valve stem with single or triple groove configurations. This retainer is matched to the N54 exhaust spring geometry and groove options to ensure secure keeper engagement and proper seating, offering a direct-fit steel retention solution for the described N54 exhaust valve setup.
Supertech Steel Retainer BMW N54 Exhaust 7 Degree 6mm Valve Stem Single/Triple Groove Valve
