Wilwood Superlite 4R 4-piston rear brake kit, road race, 2015-23 Mustang, 14"

Fits: 2015-2023 Mustang (S550). Call before ordering for 2024+ (S650) - fitment not listed by Wilwood

• 14.00" diameter x 0.81" wide rotors: slotted
• 4-piston Forged Superlite 4R calipers, anodized (gray) finish
• Pads: BP-35 compound, Wilwood pad plate #7420
• Requires Wilwood 220-13913 stainless steel braided hose kit
• Road race kit with high temperature race pads. Extended low temperature (street) use will cause premature rotor and pad wear
• Minimum wheel size: 18" - check the wheel clearance drawing in the Wilwood instructions before ordering

This kit is configured for dedicated road racing on all base, Eco-Boost and standard production GT model 2015-2023 Mustangs. It is the engineered match for the AERO6R/ST front race kits. All emphasis is on matched front to rear balance, high durability, and high efficiency heat management, without adding unnecessary rotating or unsprung weight to the driveline and rear suspension. The FNSL4R/ST calipers used in this kit feature a forged aluminum body with a Type III Mil-Spec, medium gray color, hard anodized finish. Hard anodizing provides superior wear resistance in the piston bores, and high resistance to abrasion and corrosion throughout. Thermlock® pistons are used to reduce heat transfer from the pads to increase fade resistance, and extend service life by decreasing temperatures in the caliper body, fluid, and seals. Internal damper springs and controlled retraction, high-temperature piston seals assure consistent pedal height from start to finish. Caliper piston volumes are matched for full compatibility with the OE master cylinder output and ABS controls. The calipers are also fully compatible with manual brake conversions to balance bar pedals using appropriately sized master cylinders. GT competition series 36 vane 14.00" rotors are dynamically mounted to the OE hubs with weight saving forged aluminum hats. As is with the calipers, the hats are hard anodized for superior wear resistance and extended service life at the load bearing surfaces.

Wilwood part number: 140-14483