Catback exhaust question

[TroyHigyBottoms]

I have a stock 2012 wrx and If I were to get the Invidia N1 race cat back would it need the ap or a tune?

 

[Gussy818]

No you don't need ap or tune for just the catback.

 

[TroyHigyBottoms]

No you don't need ap or tune for just the catback.

Thank you!