DBA DBA42165S 4000 T3 Slotted Rear Brake Rotor 330mm for 15-23 Ford Mustang S550

Vehicle Fitment

• 2015-2023 Ford Mustang GT 5.0L V8 (S550, Non-Brembo Brakes)
• 2015-2023 Ford Mustang EcoBoost 2.3L w/ Performance Package (S550, 4-Piston Front)

Fitment Notes

• Rear position only -- 330mm rotor
• Fits non-Brembo GT and EcoBoost Performance Package models
• Does not fit Brembo-equipped GT Performance Pack or Shelby GT350/GT500
• Matching front rotor (non-Brembo 352mm): DBA42164S
• Matching front rotor (Brembo 6-piston 380mm): DBA42166S
• Non-directional -- universal slot design, no left/right designation
• Black high-temperature coating on non-friction surfaces
• Sold individually -- order quantity of 2 for a complete rear set

Features

• DBA 4000 Series T3 slotted performance brake rotor
• XG-150 high carbon alloyed iron casting
• Thermal Stability Profiling (TSP) heat treatment
• Patented Kangaroo Paw ventilation -- 144 diamond/teardrop pillars
• Up to 30% more internal surface area and 20% better cooling vs. straight vane
• Tri-symmetrical T3 curved slots for quiet, smooth pedal feel
• Thermo-graphic heat paint monitors peak braking temperatures
• Lasts up to 3x longer than most competing rotors
• Rated for severe motorsport use

Specifications

• Series: DBA 4000 T3 Slotted
• Position: Rear
• Rotor Diameter: 330mm
• Material: XG-150 High Carbon Alloyed Iron
• Heat Treatment: Thermal Stability Profiling (TSP)
• Ventilation: Kangaroo Paw (144 Pillars)
• Slot Pattern: Tri-Symmetrical T3 (Non-Directional)
• Coating: Black High Temperature
• Quantity: Sold Individually

Included Components

• 1x DBA 4000 Series T3 slotted rear brake rotor

Product Description

The DBA DBA42165S is a 4000 Series T3 slotted rear brake rotor for the 2015-2023 Ford Mustang S550, fitting GT models with standard (non-Brembo) brakes and EcoBoost models with the Performance Package. Cast from XG-150 high carbon alloyed iron and processed through DBA's proprietary Thermal Stability Profiling (TSP), this rotor is engineered to handle the repeated extreme heat and stress of intense braking applications -- from spirited street driving to dedicated track sessions. The TSP process subjects the rotor to prolonged controlled heat cycles that relieve internal manufacturing stresses, maximizing thermal stability and minimizing the surface cracking that plagues lesser rotors under heavy use.

The patented Kangaroo Paw internal ventilation system uses 144 diamond and teardrop-shaped pillars to achieve up to 30% more internal surface area and 20% better cooling efficiency compared to traditional straight-vane designs, while simultaneously strengthening the rotor structure for greater stability under heat. The tri-symmetrical T3 curved slot pattern is CNC machined to dampen vibration harmonics for a quiet, responsive, and smooth brake pedal feel while providing increased out-gassing exit ports for consistent pad contact and stopping power on every application. The non-directional slot design eliminates the need for left/right directional rotors, simplifying installation. Thermo-graphic heat paint markings on the rotor edge change color at critical temperature thresholds, allowing drivers to monitor peak braking temperatures and optimize pad selection accordingly. The matching front 4000 T3 rotor for non-Brembo applications is DBA42164S (352mm), and for Brembo 6-piston applications DBA42166S (380mm). Rated for severe motorsport use. Sold individually -- order two for a complete rear axle set. Made by Disc Brakes Australia (DBA).