Custom tune needed for minor exhaust upgrade?

[ticopowell]

As far as I know, any exhaust modification besides a true dual exhaust won't need any modifications to your tunes.

[Longshot270]

Originally Posted by ticopowell

As far as I know, any exhaust modification besides a true dual exhaust won't need any modifications to your tunes.

Most hi-flow cats need it as well as long tube headers and some short tube headers. Has to do with the flow rate dynamics.

[ticopowell]

I forgot to say mods after the cats...., lol oops.