* V6: Around 210 horsepower.
* GT (V8): Around 412 horsepower.
* Shelby GT500 (Supercharged V8): Around 550 horsepower.
To know the exact horsepower of a specific 2011 Mustang, you'd need to look at the vehicle's specifications (often found on a sticker inside the driver's side doorjamb) or the owner's manual.