Yea I need a special tune as well, I have a 2002 Mustang GT, w/ a 70mm accufab, JLT cai, typhoon upper intake manifold, steeda pullies, 200 amp alternator, flow master 44 w/ stock cats x pipe, and diablo sport tune (9r09).

That's what I was scared of....didnt want to install the new 9r05 into my 9r03 without putting back the original factory tune cuz then I would've had to get a dealer reflash and that aint cheap? Good luck brother.

Ohh...ok thanks for your reply.

Any one..? Plz...thanks

I have a 2002 Mustang G.T with a preditor U7146 software revision r03.

My Car doesn't have much done to it; I have JLT intake, lower steeda crank pulley, & steeda tri-ax short shifter.

I put the diablo tune and was wondering if I were to put revision r05 will that give me more H.P than the ...

Is this true mikel. I would like to know since I just bought a tuner, and I'm curious about the Predator tune I insatalled in my 02 Mustang GT?