2012 ROUSH Stage 3 Mustang announced
16/04/2011 03:33 - admin
2012 ROUSH Stage 3 MustangUnder the hood, the 5.0-liter V8 engine has been outfitted with a supercharger that enables it to produce 540 hp (403 kW / 548 PS) and 465 lb-ft (630 Nm) of torque.[...]

Source: worldcarfans Tuning
http://www.tuning-links.com/news_1613_2012+ROUSH+Stage+3+Mustang+announced.html