Ford Performance just released this new brake package and it includes everything you'll need to install the kit but larger wheels to clear the brakes.
https://performanceparts.ford.com/part/M-2300-Y
Kit includes:
GT350R Front Calipers
GT350R Front Rotors
GT350R Front Brake Pads
Front Caliper Adaptors
GT350R Rear Calipers
GT350R Rear Rotors
GT350R Rear Brake Pads
GT350R Parking brake assemblies
Rear GT350R knuckle and hub assemblies
GT350R axle assemblies
All needed hardware
Detailed Instructions
Note: Stock 19” Performance Pack wheels will not clear the GT350R brake calipers.
https://performanceparts.ford.com/part/M-2300-Y
Kit includes:
GT350R Front Calipers
GT350R Front Rotors
GT350R Front Brake Pads
Front Caliper Adaptors
GT350R Rear Calipers
GT350R Rear Rotors
GT350R Rear Brake Pads
GT350R Parking brake assemblies
Rear GT350R knuckle and hub assemblies
GT350R axle assemblies
All needed hardware
Detailed Instructions
Note: Stock 19” Performance Pack wheels will not clear the GT350R brake calipers.