I spoke to a tech at Diablo today and got some information for thier 5.7 HEMI tuner that is due out late December. From the conversation, you will be able to custom tune to your liking. This is unlike the SC and HyperTech that have preset programs that you use. Fuel, rev limit, shift points, O2 sensors on/off and many others. From what I can tell the Diablo does everyting the SC does plus more. Instead of just three programs you can custom tune your fuel tables to get a better fuel mixture if you want to drag race. Worth waiting for.