Experts of Hennessey Performance studio finalized the Dodge SRT Viper GTS, significantly improve the impact of its powertrain. The studio have reprogrammed electronic engine control unit, as well as set the intercooler, drive a supercharger and other injectors. In addition, more effective superpenalties received stainless steel exhaust system. If the original coupe power 8.0-liter V10 engine reaches 645 hp, the modifications of the program Hennessey increases the engine returns to 819 “horses” and 1071 Nm of torque. From zero to hundreds of modified Dodge Viper accelerates in 2.9 seconds. Distance of a quarter mile (402 meters) supercar overcomes later 10.5 seconds after launch, the speed at the finish line is 230 km/h. The company noted that this tuning program is available for GTS traffic modifications, and to track the ACR, produced from 2013 to the present. The cost of improvements is not called.