This high quality coil adapter harness will make creating your own AEM Coil Kit simple. It removed the guess work out of building your own adapter harness.
The Harness is made from high quality cable and installation is simple.
All that is required is a high quality 4 pin relay of your choice. then add some AEM SMART Coils and some of our Custom MSD Ignition Super Conductor HT leads and your just left with having to build your bracket.
Connect one Ground (with the ring terminal) to the Engine Block
Then connect the other black ground wire to the chassis (or direct to battery negative) and the red live wire to the battery positive.