According to edmunds, heavily updated is the 2003 SVT Mustang Cobra, which makes 390 horsepower and 390 pound-feet of torque thanks to the addition of an Eaton supercharger. A new six-speed manual transmission drives the rear wheels through a 3.55 rear axle ratio. Larger wheels and tires come standard, along with stiffer springs and a tubular cross brace. Cobra convertibles have a cloth top, while both cars get new seats with upgraded leather and suede upholstery.
A limited-production Mach 1 model arrives later in the year with a massaged 4.6-liter V8 engine making at least 300 horsepower and 300 pound-feet of torque, a functional shaker hood with ram-air scoop, black striping, unique leather seating and retro-design Magnum 500 alloy wheels, and, of course, a Mach 460 audio system. Mach 1 can be ordered in a variety of colors with either a manual or automatic transmission. Like the Mustang Bullitt before it, the Mach 1 comes with a lowered, retuned suspension and additional frame rail connectors for a stiffer body. Large 13-inch Brembo front rotors and upgraded calipers are standard.
Download 2003 Ford Mustang Owners Manual