Is there harm in running with a CEL?
I really want to get headers but I am trying to avoid getting a tune. I don't want to blow my warranty. I know if I have a problem is has to be linked to the exhaust for it to be voided, I know if they see headers on my car they might void it anyways but I have a buddy with a shop and worst comes to worst I figure I can have him take out the headers, then bring the car in for warranty. So my question is what can go wrong running headers on the car with no tune? Thanks
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