I am going to get a AF1 intake and an SCT tuner with tunes from Troyer for my 08 F150.
If I add a catback exhaust later on down the road will I need to change my tunes or can they be left the way they are???

 

Why not put your question to Mike Troyer? He's the one who needs to know about any mods you have or are thinking about, since he's the one writing your tunes.

Motto (or is it a moral?): "Always go to the Oracle - skip the middleman".

- Jack

 

No you will not need to change the tunes. The exhaust will have no effect on the tuning.