Ok here's the results from the dyno. Temps/conditions couldn't have been closer to the day of the reference dyno. (good news) Maybe one degree difference. Vehicle is in fully stock configuration except for the Dinan stage 2 ECM flash tune.
For those who think charts suck, here's the skinny.
All wheel horsepower went from 270 to 289. which is a difference of 19hp, (it really was a difference of 20hp, but the computer is rounding off the numbers) and torque went from 280 to 327, a difference of roughly 47 ft TQ.
So 20HP / 47TQ increase to the wheels, and that's as measured on a Mustang dyno. Dinan gives the tunes increases in flywheel HP, saying that it will get the vehicle an increase "up to 350HP and 400TQ" (flywheel HP). In my particular case that translated to an increase of 20HP / 47TQ on the AWD drivetrain. Keep in mind Dinan tunes their stuff more conservatively than most other aftermarket tuners.
Also something to note is the lines for both the HP and TQ acceleration curves. The tech there pulled up the runs with the N55 Stage 1 and compared them with the Dinan flash tune. Dotted line is the N55 Stage 1 runs.
