If it is a stage 3 then it definitely won't work as they look for a 3 bar map and tip sensors that you change out when you go to stage 2 and the stage 3 for the srt-4. If you are crazy about that pcm then get a hold of Rage Tek
RAGE-TEK
for the Diablosport. They can do canned tunes for what you want and I'm pretty sure the car owner can make some changes to what they want, too. Check them out.