Quote:
Originally Posted by 6MT_Addict
Stock engine; every 60k miles / 100,000km unless you have issues with a misfire.
Tuned engine; depends on the tune but 30-40k miles as a starting point.
If the ignition coils are original then consider changing those soon, they will be near the end of their life.
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so changed the spark plugs 30k miles ago so they should be fine, but the coils i didn't touch. I have a some hiccups at idle and wonder if this is related to spark plugs or coils.. its not bad, but it happens here and there...