• Ti-VCT V6 (twin independent variable camshaft timing) 305 horsepower and 280 lb.-ft. of torque
• 5.0L V8 cam torque-actuated Ti-VCT 412 horsepower and 390 lb.-ft. of torque
• 5.4L V8 supercharged, aluminum block 550 horsepower and 510 lb.-ft. of torque

In its quest to turn the Boss 302 into what it calls "a race car with a license plate," Ford upgraded the GT's suspension with stiffer springs and bushings, adjustable shocks, and a thicker rear anti-roll bar. Ride height drops 11 mm up front and 1 in the rear. As with the original Boss 302, shock adjustment is done manually-in this case via a screw atop each shock tower-among five stiffness settings.

The Mustang's electric steering system has also been reworked, giving the driver a choice of three feedback settings-Comfort, Normal, and Sport. Traction and stability-control systems are reprogrammed to offer a choice of full engagement, no engagement at all, or an intermediate sport mode.