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MZ3 Z3M S54 Engine Wiring Harness
The MZ3 S54 Engine harness is quite a bit longer than the E46 M3 engine harness and allows for mounting of the ECU in the glovebox of an E30 or E36. This is not necessary, but is recommended if you are seeking the most OEM install possible.
Categories: E36, S54 E30 Swap
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