The True Forged Super Sport Wheels are the latest wheel designed for the '05-'13 Mustang and '07-'13 Shelby GT500. These wheels are made from forged billet aluminum here in the US. Available in several finishes, 18"-20" sizes and 11" width so you can put some rubber on the road. Custom made upon order from Bangastang. The Super Sport Wheel starts at $2,700 for a set of 4 in 18 inch size.

Here's the link for more details http://www.bangastang.com/supersportwheels.htm