Brake upgrade 5.0 GT

Yesterday I installed a Maximum Motorsports Brake Upgrade Package plus new disks and drums on my wifes '90 Mustang 5.0GT Convertible. We will see if it can keep the promise written in the description.
"Reduces stopping distances by 12 to 15 percent! The next best thing to Baer Claws at an affordable price. This upgrade package includes Hawk brake pads HB-263 , High Performance Rear Shoes, Stainless Steel Caliper Sleeves, and Stainless Steel Brake Hoses(3-hose kit). The complete MM brake upgrade package produced an average stopping distance of 114 ft from 60 mph, with the shortest distance at 98 ft (Mustang Monthly, Sept. 1993). For more information, also see our article in Super Ford, July 1994."