The VelociRaptor 400 Ford Bronco, upgraded to 400 HP by Hennessey Performance, chassis dyno pull is a transparent display of power and performance of our 400 bhp Hennessey upgrade. In the above video, the VelociRaptor 400 undergoes rigorous chassis dyno pulls, where its horsepower and torque output are measured and recorded. The upgraded Ford Bronco produces an incredible 400+ horsepower and 503 lb-ft of torque, making it one of the most powerful Ford Broncos ever built.