PI swap???

[Ryan Hamilton]

Hi, I'm new (obviously) I'm wanting someone to explain to me, "PI" parts?? swaps? What does "PI" stand for?? I'm very curious. Thanks to anyone providing helpful information! I look forward to learning more about my favorite car!

 

[mygreengt]

PI is referring to the Power Improved heads/cam/intake on 1999+ mustang gt's and other 4.6 motors. you can swap any PI part(s) onto your 1996-1998 NPI (non-power improved) mustang gt.

hope i helped!

 

[Ryan Hamilton]

Man. You helped tons.. I've been extremely curious about that for a long time. and no one has been able to answer as thoroughly as you have!! I appreciate it tons!! Now.. I hear people say, I full PI swapped GT is gonna be better than a full bolt-on GT...?? is that true? What do you think? advice? Thanks again!

 

[mygreengt]

all of the PI parts flow more air compared to the NPI parts. when you swap them onto your NPI it bumps the compression a tad, making you have more power than a stock, or even mild bolt on PI gt.