Ford Mustang Brake Kit - Rear - Baer Brakes - SS4+ Deep Stage, S4 Caliper, Slot & Drill, SDZ - Fire Red - `15-`23
Ford Mustang Brake Kit - Rear - Baer Brakes - SS4+ Deep Stage, S4 Caliper, Slot & Drill, SDZ - Fire Red - `15-`23

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Ford Mustang Brake Kit - Rear - Baer Brakes - SS4+ Deep Stage, S4 Caliper, Slot & Drill, SDZ - Fire Red - 2015-2023. A compact rear system engineered for S550 Mustangs while clearing many 15-inch wheels.
This SS4+ Deep Stage kit pairs Baer’s 4-piston S4 calipers with two-piece slotted and drilled zinc-plated rotors, pre-assembled with NAS stainless hardware. It uses the HB540 pad shape, includes all mounting hardware, and comes in Fire Red powder coat. As the lightest SS4+ Deep Stage rear option, it’s recommended for lighter cars or parachute-assisted setups; for full-weight S550s that rely mainly on brakes, Baer’s version 2.0 is recommended. Manufactured in Phoenix, AZ. Fits 2015-2023 Mustang (S550), except GT350.
Features
- 4-piston S4 calipers; hard-anodized aluminum pistons
- 11.62 x 0.705 in two-piece slotted/drilled zinc-plated rotors
- HB540 pad type; stainless abutments; noise-suppression clips
- NAS stainless rotor hardware pre-installed
- Mounting hardware included; Fire Red finish (SDZ)
Have questions or need guidance? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We offer installation and customization at our Austin, Texas and Los Angeles, California area locations. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov





