I just thought I'd try to find out who's truck this is since it was awesome. It looked like a stock gmc sierra but with blacked out windows (it was kind of dark out).... but jesus this thing was fast. Couldn't keep up with it in my friend's eagle vision even if we had a few lengths advantage. Eventually we flagged him down and he said all he did too it was put in exhaust, and it's fast because it's small.