The 2013 Jeep Grand Cherokee SRT8 is getting a serious power upgrade from Hennessy Performance, with renderings recently teased for the upcoming 24 unit release.

Hennessy started with the stock SRT8 motor, which is priced at $55,295, puts out 465hp and 465 lb-ft of torque, and boasts 4.8 second 0-60mph time. After a displacement increase to 7.0-liters from the standard 6.4 and the addition of a twin turbo, the tuner produced the HPE800, which lives up to its title with an intense output of 805hp and 823 lb-ft of torque. Cutting the 0-60mph time down to 3.1 seconds, the HPE800 can run a ¼ mile in 10.9 seconds at 130mph.

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The tuner also upgraded the transmission and torque converter, along with stopping power provided by a new Brembo brake system, and a set of lightweight 20-inch wheels. Visual mods include a custom interior upgrade and a carbon fiber front lip spoiler on the outside.

Pricing for the model also gets a substantial upgrade, starting at $235,000.

- By: Alexandra Koken