Roush’s tuning package for the Mustang S550 also features a full body kit and a modified suspension, plus an upgraded cooling system for the engine. It also comes with a set of 20-inch wheels ...

Mustang 5.0 V8 is already a powerhouse that would suffice for most of its buyers. Packing a healthy 480 hp and 418 lb-ft, the Mustang GT won’t shy away from a light-to-light showdown. However, modern ...