no you will not need a tune. They are going to get louder and maybe a little more drone? Not 100% on the drone as I don't have those axle backs.I have a 5.0 and flowmaster outlaws axle backs. I want more sound. If i delete the resonators will i need a tune? Also what are the effects of deleting them?
i dont wanna delete the cats because its hard to find someone to pass it for inspection. i know a guy that has for me in the past but im not liking his price to do it. a full exhaust is in the future, very far future.Personally, I would delete the cats and tune it, I think that would give more sound, and also would sound better than a resonator delete. Just an opinion though, I don't like the sound of no resonators unless it's on an entire aftermarket system