How do you get a 5.7 Hemi to make 700 HP? With a whopping great big supercharger, that's how. But don't worry, the rest of the SMS 570X Challenger has been suitably beefed up, too.The fully certified and street legal SMS 570 Challenger and SMS 570X Challenger will bebased off the 2009 Dodge Challenger R/T platform and will feature a SMS designed andengineered SMS 296 Supercharger atop the 5.7L
