Hennessey Test the Mammoth 1000 RAM TRX in RWD Mode, Makes 761 WHP on Dyno
4 May 2021, 20:08 UTC · By: Vlad Mitrache / With the front axle disengaged, the Hennessey Performance-tweaked RAM 1500 TRX makes 176 rear-wheel horsepower more than in stock form