Hey yalll.. I just did K04's after a snapped timing belt, figured hell the engines out, so its a good time... What plugs would be best for me? I searched and i couldnt find anything on it... Im running K04's, a JHM FMIC, and a few minor mods for strength and reliability.. I will be sending the ECU for programing this week. Will the plugs effect the tune that I get? Should I run hotter/colder plugs.. and to what degree. Im not looking to break the bank, but I want to be safe.. Hell the 04's already cleared the savings haha.. Any advice is appreciated, Im not too advanced in this area...

 

i would say a good copper plug would be best, probably gapped at .25 or so.. coppers tend to run cooler which is good for your setup and the lower the gap on such a high boosted car is good to lessen the chance of a misfire by the high psi of forced induction blowing out the spark..