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when i replaced my spark plugs i was told they were ready to go?..... i own a 04 rx8, ive been having idle issues im kinda new to the forums
I think 2 things may also be relevent - they are an Iridium plug and general instructions on those is 'Do Not Gap' as the centre electrode is so fragile to force. So all Iridiums are pre-gapped as such.
Secondly, since these plugs ONLY fit our cars - what other gap would they be set for!
Do Not Judge Me By My Composure because I'm lying to myself...
the denso iridium plugs have a much stouter ground straps and can be gapped --carefully.
Some have had really bad results in gapping the ngks, but i still do, but only one time when they are brand new. I only barely touch the center electrode. You do have to be VERY careful and gentle. I do look at the grounding strap with a magnifying glass afterward.