Quote:
Originally Posted by jadams161
Do you own an N54 powered car?? Hard to recommend stuff if you don't. BMW recommends 45k mile intervals. If tuned even less....
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Also depends on what sparkplug and brand. copper last less than iridium laser...
haha, yeah Ive noticed it on my tuned audi. On my previous n/a v6, yes iridium lasted 100k km, but my tuned water/meth audi, they lasted 55k km, and I had massive missfire.