I was reading through a OCT MOPAR Action Mag here in the middle east and came across an article on page 22. Competition Cams Inc out of Memphis tested 3 versions of cams on the 5.7L for the Chargers. To get around the stock electronic limiter thats set to 5700 they installed the Hypertech and set the supertune to OFF leaving the factory tuning untouched but allowing more RPM. They still have a few things to work out but they've made alot of progress and the price should be right for the HP gains. They might be worth watching for further updates and kits.