Originally Posted by ktmrider

Only speculation and rumor but to maintain the 7/70 powertrain warranty the computer control for the engine and tranny are extremely conservative. There was a huge uproar over this when folks started hitting the dyno. There were a few letters written and legal threats made but in the end DCx replied "Like it or leave it". The rated crank HP is as advertised, and no promises were made for wheel HP so they were covered ( unlike the Mazda RX8 issue ).
Case in point, the 03 models had the torque management interface on an external wire. Pull/cut the wire and your 1/4 mile times dropped by 0.3 seconds! Did we add 30HP, the average rating for that kind of improvement ( 10hp is around 0.1 second )?!? Nope, just prevented the tranny from slipping during the 1-2 shift so it feels smoother.
Replacing the TC dropped 0.2 seconds from my 60' time. Again did I add 40hp?!? No, just the **** computer doing its thing, protecting the engine and drivetrain.