Chassis dyno testing the Hennessey Performance HPE500 engine upgrade for the 2016 Camaro SS LT1 V8. Claimed gains are over 35 rear wheel horsepower and torque over stock. Modifications include Kooks 1 7/8 inch long-tube stainless steel headers with high-flow catalytic converters, high-flow intake and recalibrated engine management computer. Watch the dyno video INSIDE.
