Originally Posted by J08M3
Which are you going for? I thought you already chipped your car?
Yes, I got a custom tune already.
However, *if* I were to remove the primary cats, I would get a CEL. *If* I did that, I would need software to turn it off. While getting the CEL turned off, *if* my car found its way onto the dyno, I could get a new tune that took the primary cat delete into account for more power.