Description
For serious racers who demand precision and reduced weight, the Baer SS4+ Deep Stage 11.625" Front Brake Kit delivers maximum performance in a compact, lightweight package. Designed specifically for 2015–2023 Ford Mustangs (except GT350), this kit clears most 15” wheels, making it ideal for drag racing applications and parachute-equipped vehicles.
This system features Baer’s proven 4-piston S4 calipers, CNC-machined in Phoenix, AZ and finished in a sleek Clear powder coat. Paired with 11.625" x 0.705" slotted, drilled, and zinc-plated 2-piece rotors, the setup offers excellent thermal management and stopping power with minimal rotating mass.
Unlike the 2.0 version, this kit is optimized for lightweight builds or cars equipped with additional deceleration systems like chutes. It uses a street compound HB540 pad—offering low dust and noise—while track-specific pads are available on request.
Whether you're setting records at the strip or dialing in weight balance for a competitive edge, the SS4+ Deep Stage 4261428C kit is your go-to lightweight brake solution.
Vehicle Fitment:
- Ford Mustang (S550) – Model Years 2015–2023
- Excludes GT350 models
- Compatible with GT, EcoBoost, and V6 trims
- Always verify wheel clearance using Template S110I
Key Features:
- S4 4-Piston Calipers – Lightweight, fixed design for high-performance drag/street builds
- Clear Powder Coat Finish – Sleek and corrosion-resistant
- 11.625” x 0.705” 2-Piece Rotors – Slotted, drilled, and zinc-plated with billet aluminum hats
- HB540 Brake Pads (Street Compound) – Low dust, low noise; not track-suited
- Ultra Lightweight Setup (28.1 lbs) – Recommended for lighter builds or cars with parachutes
- Fits Most 15” Wheels – Compact design clears beadlock and drag wheels
Technical Specs:
- Axle Position: Front
- Rotor Diameter: 11.625 inches
- Rotor Thickness: 0.705 inches
- Rotor Type: 2-Piece (Slotted, Drilled, Zinc-Plated)
- Caliper Type: Fixed
- Piston Count: 4
- Brake Pad Type: HB540
- Wheel Bolt Pattern: 5x4.50
- Minimum Wheel Diameter: 15 inches
- System Weight: 28.1 lbs
- Part Number: 4261428C
- UPC: 844165050520
- Template: S110I
System Notes:
- Designed for lightweight or parachute-equipped S550 Mustangs
- Not suited for full-weight street use without added deceleration support
- Street compound pads included, race pads available separately
- Hoses not included in this kit
