Hi folks in my last post I said I would post the results of my test of the E3 plugs and the Power X Wing. I put on 998 miles over the weekend. I left Weiser ID and put 135 miles on when I got the first check eng light these plugs were not playing nice with the EFI. I continued to Winnemucca NV with the light coming on every now and then. In Winnemucca I decided to change to a Harley plug which was not available so I went with champion which cross referenced to the harley plug. Here is where I had the real problem I pulled the rear plug and it spalled the cylinder head (tore the threads out) I managed to get a champion plug started and tightened down. No more eng light. Now I have to run a tape down the hole to clean the threads if I can get the plug out. What I will do is run the eng to top dead center and then put grease down the spark plug hole until it fill the gap between the piston and the head. Then tap the hole and use the shopvac to take out the grease and any shavings from the tap. Next post will cover the X wing Don't use E3 plugs.