Swapping on 03 engine into a 96 GT

[DavidNJ]

Hey guys im swapping an 03 engine into a completly stock 96 gt with 85k. i need some help what needs to be swapped over from my 96 engine to make this work? can i use my stock tranny? do i need a bigger clutch or can i go with a 10.5? and are all the motors from 99-04 PI motors? if not how do you tell if its a PI? And do i need to swap to a different exaust system because i still have the stock exaust from the 96 on there, it hasnt been touched? thanks guys