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NOTICE: Due to current demand, please add 3-4 weeks of production time for cylinder heads & engines.
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Supertech stainless steel valves for the M20 engine.
Standard size valves are black nitride coated 36mm exhaust & 42mm intake.
+1mm oversized valves are inconel 37mm exhaust & 43mm black nitride intake
Replaces BMW part numbers 11341287814 & 11341706631.
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