2015 Ford Mustang Roush teaser
Roush Performance posted on Facebook a sneak peek of its custom 2015 Ford Mustang, which will be fully revealed over the next few weeks. Also, the hashtag #ROUSH550 hints at a 550-horsepower variant of the 5.0L V8 engine, whereas the 2014 Stage 1, Stage 2 and Stage 3 models ranged from 575-675 horsepower.
