06 T-RED S/C GT
forum member
Thanks guys. At least I know now which plugs not to buy!
If you don't want to stick with OEM motorcraft? I would recommend going with either Accel or Brisk racing one piece spark plugs.
I have these in my car now. Granted I don't drive her much these days but they have been in for a little while with no issues. They are a 1-piece plug with a conventional electrode/strap design and these are 1 degree colder for FI or Nitrous applications. They are also only $100 which is a great price if you run Brisks. I have never looked to see if they have a normal temp range plug. Accel is a brand I have known and trusted for decades.
https://www.cjponyparts.com/accel-s...colder-16mm-set-3v-4-6l-2005-2008/p/SP8160C1/
IIRC, didn't you mention in a different thread you switched back to the Brisk Racing from the Accel plugs because the Brisk plugs performed better or something along those lines