Sulphur Springs, Texas-based Omar Castillo owns and operates “Blue Demon”, his 2011 Kenworth T660. He uses the rig to haul hazardous loads from Houston to Long Beach, California. He has owned Blue Demon for six years, adding pieces to the truck as he goes along. The truck is powered by a Cummins ISX with a 13-speed and 3:55 rears. The engine has been tuned up to 700 horsepower. Last summer, the truck received a new Sovereign Blue paint job. Castillo also removed the air shield and incorporated the whale tail wing on the roof. He has added a deck plate with an illuminated box and a custom T-bar built by Valley Chrome. The tires and rims have also been upgraded from 22.5-inch to 24.5-inch with low-profile tires.