Prices shown are the prices you can expect to pay for a 2017 Roush Performance Stage 2 Mustang 2 Door Fastback GT across different levels of condition. Edit options.

Roush will be adding regular Phase 1 and Phase 2-tuned supercharger kits to the lineup, which are scheduled to go on sale later this year. All kits are compatible with the 2024 Ford Mustang GT and ...