No its not supercharged its basically the body kit, magnaflow side exhaust, shaker hood option, indiglo gauges, billet petals,trunk lid tool box,and embroidered floor mats. The stage 3 is supercharged along with the Roush Classic and the 380R.
That's a pretty cool looking car. When did roush start putting a different side emblem on? I'm guessing it's rated somewhere around 270 or so horsepower at the crank.