I have a 2009 SRT8 challenger with a stroker 6.1 that makes it a 426 7.0 motor with a supercharger dyno 850 horsepower, 716 at the rear wheels. I love it, it has a-c navi and only 4,000 miles, 1,000 on the motor-trans-suspension and set up. A friend of mine has a 2011 GT Mustang, supercharger...