Officially on sale this fall, Roush makes another engineering artwork as they come up with a 2010 Mustang that has a massive 540 horsepower. The tweaked Ford may not really need that much of a pimping but the versions from Roush comes in two levels with a wide array of modifications and styling enhancements.

The Stage 3 Mustang has an impressive power that comes from the supercharged V8 4.6 engine of the Mustang GT. The engineers of Roush integrated aluminum pistons, new fuel injector and rails, and customized crankshaft to achieve the power level they wanted.

The Stage 3 Ford Mustang tops their line of creations and Roush only plans to produce about 103 of these units. The Stage 3 setup will come with a complete body kit, 4-piston calipers on fourteen inch brake discs, and 18 inch chrome rims as standard with 20 inch wheels as an option.

The interior also gets some upgrade with the full leather treatment for the seats with the Jack Roush signature embroidery, custom badging, short shifter, and lighted skid plates. The Stage 3 package has a hefty price of $59,945.

The 540RH kit may still be considered a bargain since it will have the Stage 3 Ford Mustang engine upgrade but the price sticks at $46,145. The Mustang also gets a new spoiler, suspension package, and a shifter on short-throw setup.

Both the 540H and the Stage 3 comes with a 36-month warranty and is only available on manual transmission. It’s much more impressive than the 2010 TrackPack Ford Mustang which I tried earlier this year too – take my word for it!