Check out AA's site re dyno graphs of JC, Dinan and AA software for OBD2 M3's. It aint pretty. The JC and Dinan graphs show essentially ZERO gains. The AA graph shows only a 5hp gain. What's the point? Somebody needs to come out w/ a $100 "injector" type of product that simply raises the rev limits and removes the speed governor. Why pay for all that other power/torque tuning R&D, if its utterly useless?