This ignition coil harness is an OEM harness with the coil plugs modified to fit the B58 ignition coils per the MS4X wiki.
It is for MS43 ONLY, if you require one for MS45.1, please reach out to us, as we can custom create you one.
This is a plug and play coil wiring harness for the MS43 engine management, and B58 coils.
Modified at our facility using OEM+ quality pins and plug housings, no cheap sub-par parts from China.