[NAVAG]

Technically all a new tune is supposed to do it turn the O2 sensors off. The new tune I got from Bama (I know, I know) was a little more aggressive. Mine ran fine without the tune but the check engine light comes on. Thinking about getting in line for a dyno tune from HPP.

I love the cat delete smell. Reminds me of when I was a kid and all the mustangs smelled like that. Plus driving under bridges or parking garages...Damn!