Prices shown are the prices you can expect to pay for a 2021 Roush Performance Stage 3 Mustang 2 Door Fastback GT across different levels of condition. Edit options.

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 ...

Prices shown are the prices you can expect to pay for a 2019 Roush Performance Stage 3 Mustang 2 Door Fastback GT across different levels of condition. Edit options.

Power add-ons were reserved exclusively for Stage 3. As the years passed and cars grew more sophisticated, so did Roush's ...