Its so funny seeing peoples reactions The GT used to randomly pop and I mean real random. If your in a low gear coming down from about 3k rpm to 2k really slow and you ever so slightly touch the throttle you can make it pop. Only once did I get it to make a big BANG! but the thing is your going slow and its just crap lol. When I first installed my AVCR it used to boost spike and hit fuel cut and make the loudest bang and flame you have ever heard, was fun doing that until I got it mapped lol