MSD LS Coil Power Upgrade Harness - For Use w/ MSD LS Coil Packs 35453XLGBK 1969-1974 Plymouth Fury II

1969-1974 Plymouth Fury II

Retains factory-style spring cup

screw in air bleeds for easy fine tuning

and 409 OEM performance engines

MSD LS Coil Power Upgrade Harness - For Use w/ MSD LS Coil Packs 35453XLGBK 1969-1974 Plymouth Fury IIThis harness has been made by MSD to correct a check engine light issue that can arise in vehicles using the MSD LS Coil Packs on their engines. This harness will supply additional battery voltage to the coils in order to fire the coils properly and not drain other engine systems of power. This is necessary due to the varying wire gauges used on production vehicles. MSD LS Coil Power Upgrade Harness 88867 For Use w MSD LS Coil Packs LS Coil Power