This kit permits owners of 1987-93 Mustangs to upgrade their vehicle braking system to 1993 Cobra R/1994 Cobra specs. The kit features massive 13.0 inch front and 11.65 inch rear rotors...plus spindles, axle shafts, hubs, calipers, mounting brackets, Cobra brake booster and master cylinder, adjustable proportioning valve, hoses, tubes, attaching hardware, instructions and more. Installation is a virtual bolt-on, requiring only one flared connection. Requires use of 17 inch x 8 inch wheels (not included in kit) with 5-hole, 4.5 inch diameter mounting pattern and 5-3/4 inch backspacing. Rear inner fender lips should be rolled for tire clearance. Some vehicles may also require front fender wheelwell modifications, depending on tire size and ride height. Flat Rate Shipping of $100 will be added to your order. Please ignore quote shipping rates at checkout. 48 contiguous states ONLY.