This 2006 Kenworth T600 is owned by Jason Graves out of Brazil, Ind. The truck came with a 550-horsepower Caterpillar ACERT C15, but Graves has modified it to a 6NZ-style C16 with 750-horsepower. It also features an Eaton-13-speed. Graves uses the truck to haul steel with a covered wagon and on weekends pulls the marching band trailer for his daughter’s school. He has added lights under the bunk and cab, the 13-inch drop visor, and he custom built the dual exhaust.