Yeah, unless you know what they have on them, even HUGE 1 ton diesels will literally smoke you... And Cummins motors are badass when modded...I have a friend who did all kinds of stuff--I would list, but I don'e wanna waste time--but essentially it is an 07 3/4 ton Mega Cab 4x4 with 6" lift and 20's that runs high 11's on a medium tune... They are so unsuspecting--if I saw his truck, I would admire it for looking badass and try to stomp him--but I would be the one eating soot!