A pair of powerful American muscle cars with 570hp could be coming sooner than you think. According to the sources, the Dodge Charger and Challenger will get an Eaton-sourced supercharger kit in 2012 that will bump up their output towards the 540-570hp range. Dodge's new line of SRT vehicles will run a factory-option supercharger for their 6.4-liter HEMI engine that will put out as much as 570hp.

The LX-platform SRT8 cars will also feature an eight-speed transmission and are set to challenge the Ford Mustang GT500 and the new Chevy Camaro ZL1. Unfortunately for owners of the Jeep Grand Cherokee, the SRT8 with the Eaton supercharger option won't be available. The supercharger will be produced by Eaton and will arrive on the 2013 models. The powerful kit could be made available as a factory part and ready for order by the end of next year. No pricing information has been revealed at this time.