If the 412 hp from your 5.0-liter Mustang just isn't quite enough, Roush Performance Products has launched the ROUSHcharger tuner kit for your car, boosting output to 550 hp on pump gasoline with more than 470 lb-ft of torque. The kit (part number 421140) has a suggested retail price of $5,999 and is available now. The kit comes with a 90-millimeter pulley and generates an estimated seven pounds of boost. Also included are 47-pound fuel injectors, high-flow fuel rails, a high-flow air lid and a twin 60-millimeter throttle body.
The kit includes a 90-day parts warranty. Roush recommends you have the kit installed professionally. Visit www.roushperformance.com for more details.
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