I’m using after market Dyna coils in my race car application of the R1 motor. Problem is how to screw on the R1 OEM spark plug boot using the after market plug wire. The after market wire is good stuff, maybe to good for what I need. The high silicon content keeps twisting and prevents the plug wire from screwing on to the boot. Yes, I have thought of using the OEM coils but mounting is a problem in my particular situation. Does anyone know where I can get some of the OEM 7mm, 7 strand copper plug wire? It is much stiffer then the after market stuff and works well.