TS Performance did some dyno testing yesterday around the GDE hot tune with the TS Performance Stryker installed on top of it. Intital testing showed a 40HP increase with the Stryker installed on top of the tuning.
I get *VERY* uncomfortable when anyone stacks tunes and boxes. It is always a bad idea. I know GDE does extensive testing to be sure their tunes do not negatively effect engine/turbo life, and adding a tuning box on top of that throws all that testing into the garbage.
I'm not surprised that you can get more power out of it - dumping in more fuel and turning up boost even more will make more power. At what expense, though?