Hey guys, I got a 2010 4wd tahoe and I've been looking around for a good handheld tuner that can disable the following: - AFM - Traction Control - Stabilitrak - Throttle Delay I've heard of some tuners that can also check codes the PCM throws out. So that would be a plus if it came integrated with it. I wanted to ask you guys from personal experience what handheld tuner can do all this and give me some other optional tunes like economy or to bring it back to stock. My wife mainly uses the tahoe for daily comutes. I use it on weekends when we go to the desert or cruise around town. The reason I want the tuner is mainly for weekends, to do burn outs, donuts or just mess around in the desert and then bring it back to stock or econ mode for my wife. I've read up on the threads about the Diablo tuner and the Black Bear but don't know which on is better or offers what i need.