smokin69, I have that Edge with Attitude Performance programmer Chip, came on the truck . So far I love it ! I tow a 25ft 5th wheel and set it for Level 1 (towing) when hooked up, but when I run empty I set it for Level 2 (race) where the settings are quicker shifts & injector timing is way better giving me more power & faster off the starts, also some say that will get better mpg's in 'race' (?). I haven't tried the 3rd setting (extreme)...not ready for that yet

I will look forward to your post about the RPB exhuast... I plan on an exhaust upgrade also as well as air filter. Dennis