High Flow cats, Z1 Intakes, and Borla S-type catback: do I need a tune?
I just installed my CAI and the catback in the last 2 months and I’ve been driving around pretty spiritedly with no issue. I’m getting ready to buy high flow cats just because I like the sound/functionality from yt videos I’ve seen better than test pipes. Should I wait until I can afford a tune and just buy it all together? Or can I get away with driving it around for a month or 2 without damaging the engine?
-2013 7AT 50000 miles
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