Quote:
Originally Posted by TheSt|G
With anything car related, until I see clear evidence of an improvement in performance, I stick with stock.
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same here, but i didnt know what spark plugs came stock in my motor (n52) and after opening and pulling them out, i saw they were bosch but it was too late, i purchased the ngk, so i was worried i might get some eletrical problems. but so far so good.