Originally Posted by Sandye90m3
And if I were to convert my stock midpipe to test pipes I would get a CEL error correct which I would need to get coded for?
That's my understanding. Also think you won't pass emissions with testpipes as from what I understand, it deletes all the cats rather than high flow. It's also harder to go back to stock, if say you want to swap it out to pass the test then go back.
thnx for this thread btw, I'm having a very hard time choosing as well.