The first and perhaps most accessible of the Roush upgrades, the Stage 1 Roush Mustang, has taken many forms since its introduction in 1995. The inaugural Stage 1 focused almost entirely on ...

The 2012 ROUSH Stage 3 Mustang is powered by a 50-state legal TVS 2.3L ROUSHcharger® system that delivers over 540HP and 465 ft/lbs of torque. The powertrain works in concert with ...