This impressive system boasts a 4-piston S4 caliper paired with an 11-inch, two-piece slotted and drilled rotor, all finished with a durable zinc plating. You’ll appreciate the D.O.T compliant dust and weather seals on the S4 caliper, designed to work seamlessly with the popular DR1 or HB100 pad types. Each billet aluminum hub comes fully assembled with premium bearings, all packed with Redline synthetic grease, and topped off with sturdy billet dust caps.

The rotors are pre-assembled using NAS high-grade stainless hardware, ensuring everything is built to last. Plus, you’ll find all the necessary mounting brackets and hardware included, making installation a breeze. The 11-inch SS4+ is crafted just like Baer's larger systems but is perfectly sized for 15-inch wheels, fitting snugly on Wilwood Mustang II Pro Spindles.