The MAMMOTH 1000 RAM TRX, upgraded to 1000 HP by Hennessey Performance, chassis dyno pull is a transparent display of power and performance of our 1000 bhp Hennessey upgrade. In the above video, the MAMMOTH 1000 undergoes rigorous chassis dyno pulls, where its horsepower and torque output are measured and recorded. The upgraded RAM TRX produces an incredible 1000+ horsepower and 969 lb-ft of torque, making it one of the most powerful RAM TRXs ever built.