As you know been running stage 2+ for around 10,000 miles.
When it was taken from stage 1 to 2+ i had the plugs and coilpacks changed over to fresh OEM ones as reccomended by AMD Essex. The ones in there were fecked and gave up the minute it went 2+. Now i had previously seen a lot of talk about colder Iridium plugs but AMD said there was no need (not sure why)
My car has developed a major misfire/stutter and im thinkin its got to be the plugs again as it feels exactly how i did last time they went. I have two questions do i go for another stock set or colder ones?
Also who has the OEM plug part nos so i can get them from Euro car oarts or the like?? or if you have a different suggestion of plug which ones?
Thanks in advance and quick helped will be much appreciated!!