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SuperTech's precision-engineered valve spring kits for BMW N55 & S55 engines provide the essential components necessary for improving valve control and ensure reliability under demanding conditions
2020+ BMW 440i (G23)
For additional cooling
engineered
BMW S58 FlexFuel Kit 7549 We offer three levels ofThe bootmod3 Basic Flex Fuel Kit is now available for the BMW S58 engine, found in high performance models like the G80 M3, G82 M4, G87 M2 and X3M X4M. This kit is a simplified, engine bay mounted alternative to our High Flow Flex Fuel Kit, providing an efficient and cost effective way to add flex fuel capability to your S58 powered vehicle without permanent modifications. Utilizing specialty 5 16" plug and play fittings, the kit connects directly to
