Hennessey Performance’s HPE650 supercharged conversion is among the aftermarket’s most potent high-performance package available for your late-model Challenger SRT8. Once again they’ve managed to squeeze massive power out of a pump gas HEMI; and with a unit that puts-out 7-8 pounds of boost along with a complete cosmetic package, Hennessey’s HPE650 is far more than just a modern Mopar horsepower build.

That’s because Hennessey’s upgrade features a kit that consists of premium Hennessey floor mats, “Powered by Hennessey” engine covers and the company’s own exterior badging, and with a 3-year/36,000 mile warranty Hennessey promises to have you and your SRT Challenger covered.

The key to the HPE650, however, is its radical performance build, which takes the SRT8’s 392-cube HEMI and brings it to push an astronomical 650 horses at the crank at 6,200 revs. This is widely due to the conversion’s TVS2300 supercharger system, which aside from the TVS blower is also supported by Hennessey’s in-house air induction setup and custom HPE pulley.

Hennessey’s Challenger conversion also features a set of stainless steel long tube headers, high-flow catalytic converters and a fuel system and injector upgrade, with stainless mid pipe and cat back exhaust systems available as additional options. The HPE650 comes with all necessary gaskets and fluids, along with a custom HPE thermostat, and Hennessey offers full chassis dyno tuning and up to 100 miles of road testing.

A balance of street performance and reliability, Hennessey Performance’s HPE650 upgrade for the ’13 SRT8 comes with everything you need to make a stout performer out of your late-model Challenger, and since the kit is not exclusively for the Dodge pony, Hennessey’s HPE650 kit is one to definitely look into if you want to squeeze some scary-ass power from your modern Charger, Jeep Grand Cherokee or other SRT8 model!