I have a 2009 Gt. Im not real familier with the 4.6l engine. I have built the old 5.0l fox body stangs quite a bit, but i am wondering what all to do to my 4.6l first. Also what are some of the easy mods and tricks you can do for nothing or next to nothing.

 

4.6s don't know what "for nothing or next to nothing" means I think lol. CAI and throttle body perhaps? I know headers and an opened up exhaust wake them up nicely. I don't know too much about them either. You could do the top end "PI" swap too, don't know how hard those parts are to find though.