Originally Posted by slammedm3
so deleting the cats would actually make a significant power gain?
and if I do decide to remove the cats...I should do that before tuning with AA. so they can tune the software precisely and properly towards having better exhaust flow?
Is that correct?
I don't know if AA has a tune for the cat delete, I would assume they do.
You probably don't want to run catless, just without one set, decide if you want the first or second set gone.