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Roush unleashes 540-horsepower Stage 3 and 540RH Mustangs

by Drew Phillips (RSS feed) on Sep 18th, 2009 at 9:59AM

We had very few bad things to say about the 2010 Roush 427R Mustang after spending a week with the car, but we did have a few questions. First, why not use the new TVS2300 supercharger system that debuted on the P-51A Mustang, and second, why not add a billet grille like the previous model so that there wouldn't be six different lights up front? Roush has answered our questions in the form of the 2010 Stage 3 Mustang. The new stallion atop Roush's Mustang lineup gets a 540-horsepower upgrade complete with a second-generation R2300 supercharger, forged internals, high-flow fuel rails and... Read More

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