NGK 94201 Spark plug set for all S58/B58/48 applications, and ALSO for N54/55 running the new B58 coil upgrade. We recommend these for running 100% e85, and high boost on many BMW applications including N54, N55, S55, if you upgrade to the B58 coils. These are also great maintenance replacements for your S58/B58/48 powered vehicle at a much better price than most.
