I currently have a DiabloSport 7302 tuner that I bought because I wasn't planning to do any mods at the time. That was a mistake I have since added a Flowmaster muffler, and I'm getting headers and a y-pipe done. So now this tuner is next to useless, what's the best tuner for these options and the hemifever custom tunes? Or is there a way to trick the 7302 into uploading custom tunes? I'm probably going to try to sell my 7302 and upgrade to something useful if I can't use custom tunes, so just looking for pricing and ideas. Thanks.