Tuning for catless long tubes on 15-17 s550

[Bill88stang]

Is there anyway to make it smell not so bad ? A buddy has a 14 mustang gt and is catless and it doesn?t smell bad at all, just wondering if there is anything I can tweak for this.

[Thatwhite5.0]

Are you smelling fumes inside the car or by the tail pipes?

[Bill88stang]

Just seeing if there was any cam tweaking or anything to lessen it that’s all lol I drove a fox mustang for 12 years as a daily so I’ll just have to get used to it again.

[Thatwhite5.0]

You'd have to do the opposite of how you have your idle running the ghost cam. You're creating overlap by retarding the exhaust, allowing excess gas out. You need to eliminate overlap. Minimizing overlap would recirculate the gasses (EGR) and you would have a more stable efficient idle or an idle with out lope.