OK, after reading numerous threads reference the pro and cons of this little magic box I decided to shell out the $249.00 and try one on my new ride. Loaded the appropriate map for the stage 1 kit with SE slip-ons, then went for a 54 mile test ride. Wow, I immediately noticed the engine was smoother and more powerful through the gears right up to the red line. All the popping on decel seems to have disappeared. Not the first sign of stumbling, coughing, gagging, farting or anything else. The torque seem to have improved, more power in fourth and fifth gears. Couldn't find the first adjustment (fine tuning, cylinder balancing) etc; that was needed. Oh well, plans are to install the BB and 203 cams next week. Hope the new map works out as well as this one has.