Quote:
Originally Posted by IAmATeaf
I have read before that certain types of plugs can cause issues, no idea why to be honest. Was in a garage last year where a 320i was being serviced and they replaced the plugs and the car was rough. The mechanic came back and said putting the original plugs back in and the car was fine, new plugs and rough as hell?
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Issue being these are the OEM plugs originally from factory that I replaced with, just minus the BMW logo.