Steve Saleen and his new tuning company SMS are creating two limited edition versions of the 2009 Dodge Challenger R/T. The SMS 570 Challenger and SMS 570X Challenger will feature a SMS Supercharged 5.7-liter V8 Hemi delivering 500Hp to more than 700Hp respectively. Both models will come equipped with a series of performance parts, including drivetrain, suspension, aerodynamics, tires, wheels and interior.

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