11 hp gain with a pro m, wtf. That's news to me. Probably more kkm than pro m. One thing I know about STVs is unless sc or go 3.0 we just don't get real fast. I'm not against trying new things, but my advice is get a bassani, kkm, y-pipe, eibachs, and a 22mm rsb and call it a day, or maybe a venom kit. If getting fast is that deep just get a stang or one of the dreaded(rightfully so) bowties.
