Roush Performance continues their admiration to the allegorical World War II fighter even with the 2009 P-51B Mustang, the additional aviation-themed pony car from the Michigan-based manufacturer. This car, based on the 2009 Ford Mustang chassis, will be bound to just 51 numbered assembly cars in the 2009 archetypal year

As with the antecedent 2008 Roush P-51A Mustang, alien at the 2007 SEMA Show in Las Vegas, the 2009 P-51B will aswell accept 510 application and 510 lb.-ft. of torque analogous it as the a lot of able Roush Mustang anytime produced. In adjustment to get this blazon of ability from the Ford 4.6L, 3-valve engine, Roush technicians alter abounding of the centralized apparatus with stronger locations including artificial aluminum pistons (with an added bowl to lower the compression arrangement from 9.8 to 8.6), artificial animate H-Beam abutting rods and a artificial animate crankshaft and there is an upgraded high-capacity ammunition supply arrangement installed. Roush aswell upgrades the clamp and includes a custom-calibration for the ECM to administer the achievement of the next-generation TVS2300 ROUSHcharger.