2010 Ford Mustang 540Rh Unfinished Business
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From Roush, the Hammer gets a built Three-Valve engine with an R2300 RoushCharger. In stock form, it doesn't quite make 20 pounds of boost, but Stang-Hi Performance added a 4-pound lower pulley to arrive at that number. Other than that, the Three-Valve boasts a ported throttle body, a Stang-Hi Performance cold-air intake, American Racing Headers long-tubes, an X-shape crossover pipe, and a Stang-Hi custom tune using an SCT XCal 3. The combo is good for 620 hp and 640 lb-ft of torque at the feet on Stang-Hi's Dynojet. For comparison sake, the Hammer we tested made right at 500 hp at the wheels. View Related Article
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