2015 Roush Stage 3 Mustang Churns Out 670 Horsepower
It’s a great time to be an American muscle car enthusiast. The Hellcat has upped the standard for production horsepower, Chevrolet is about to release the sixth-gen. Camaro, and tuners are turning up the power on already-potent factory cars. Case in point: Roush Performance and its Stage 3 Mustang. In case you missed it, Roush has
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