dynamis7

I just got a 2003 gt with an automatic it has a k&n air intake and pypes exhaust I would like to mod it up eventually including swapping transmission but for know I want to know everything there's is to know about my 4.6L, like how it works what I can and can't do and what to expect etc.

school boy

https://mustangforums.com/forum/4-6l...beginners.html

sotom1

Honestly the sky is the limit. It just depends on what you want and what you'll be happy with. With bolt ons alone you can get some pretty substantial hp gains. I will say though, if you want over 300 wheel hp you'll need to put in some time and money.