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Sparks and Coils before tune?
My car has 63k miles completely stock. I have been reading on here that I should change my spark plugs before installing a tune. Should I change my coils along with that? Spark plugs arent too expensive but the coils can add up.
One a side not I don't know if my car had its plugs changed at 45K, I know at around 45K (still under warranty) it got a new HPFP and 2 new injector do you thing they changed the spark plugs as well?
Any input would be appreciated!
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