Yeah, the Dinan marketing is ridiculous. Dinan and now his new shop. Here's the strategy in a nutshell:
Car has 400hp from factory
Dinan/Carban tune adds 200hp! Go from 400 to 600hp! with a simple tune!
Fine print: The car really has 575 hp at the crank as measured on our chassis dyno and based on our assumptions for losses. Your car is AWD so losses are 45%.
Finer print: Actual increase is 25 hp at the crank. Maybe 20 at the wheel.
Stage 2 tune adds an additional 35 hp for only $50 (later verified to be 6hp with -5000DA)
More fine print: stage 2 tune requires addition of $3500 x pipe.