to whoever said that the valve train would need to be rebuilt maybe with pt cruiser lash adjusters and stuff. What if you dont run it to 8200? Where is this hp gain actually made? Cause i dont feel like needing to rebuild my top end just to gain an extra 10 hp up there. if the 10 hp is from low to mid then ill get it. Also, i want to know how to check to see if I have the early or late model 96 ECU. Why can't i just swap out ECUs and wiring harnesses with a 97?