ever since I had mine reflashed a while back, with Bullydog in stock mode the low end is awesom but the mid range and top is like stock. When I bump the Bullydog up it seems like my low end goes away a little but my mid and top are really there. Usually, unless I'm gonna play, I keep it on stock. Just seems to do stop-and-go a little better.
__________________
06 2500, Bullydog w/ Outlook Monitor, Boost Fooler, AEM Brute Force Intake, CFM+ Intake, Silverline 4" Duals,POS Auto Meter Phantom Gauges, BD aux lift pump