Depends who you ask.
Some people think just because it's cardboard its less of a Sprint then metal/plastic ones.
I got an 80mm postpak TB, and working on a custom mandrel bent 3" postpak exhaust.
Cardboard is a b**ch to bend.
Currently making around 200 box-a-watts, at the box of course.

Nah, its real, mostly stock. Mostly.
No idea on power, 192-200kw factory, and I haven't had it on the strip.

mad sounds like a good BOX