Ford Mustang S550 (2015–2024) – DBA T3 4000 Series Front Brake Kit (DBA42166S + DB9021SP)
This DBA 4000 Series T3 brake kit is a complete front upgrade designed for Mustang owners looking for stronger, more consistent braking performance over standard OEM setups.
Combining high-performance slotted rotors with DBA Street Performance brake pads, this kit delivers improved stopping power, better heat management and a more confident pedal feel for both daily driving and spirited use.
What’s Included
- 2x DBA42166S – 4000 Series T3 Slotted Discs
- 1x DB9021SP – Street Performance Brake Pads (Front Axle)
A fully matched disc and pad combination designed and tested to work together.
Key Features
- Complete front brake upgrade kit
- T3 slotted rotors for improved bite and gas dispersion
- 4000 Series high carbon alloy discs for strength and durability
- Street Performance pads with low dust and consistent friction
- Direct fit replacement with no modifications required
- Matched components from a single manufacturer
Performance Benefits
This kit is designed to offer a noticeable improvement over standard brakes without going to a full track setup.
The T3 slot design increases the number of out-gassing exit points, helping to maintain pad contact and improve initial bite under braking.
DBA’s Kangaroo Paw ventilation system improves airflow through the disc, reducing heat build-up and maintaining consistent braking performance under load.
Street Performance pads provide a strong and predictable friction response with minimal dust and noise, making them ideal for fast road use.
Disc Technology
DBA 4000 Series discs feature:
- Kangaroo Paw ventilation system with 144 diamond and tear drop pillars for improved cooling
- T3 slot design for enhanced braking response and pad cleaning
- Thermal Stability Profiling to reduce distortion and improve durability under heavy braking
Pad Performance
DBA Street Performance pads are designed for everyday and performance use:
- Semi-metallic friction material
- F-F friction rating (0.35 average mu across temperature range)
- Consistent braking performance up to 438°C
- Low wear and reduced brake dust
Specifications
Discs – DBA42166S
- Diameter: 380mm
- Thickness: 34mm
- Minimum Thickness: 32mm
- Vent Type: Kangaroo Paw
- Number of Holes: 5
- Inner Diameter: 71mm
- Height: 64mm
- Stage: Stage 4
- Weight: 15.25kg (each)
Pads – DB9021SP
- Width: 189.6mm
- Height: 85.2mm
- Thickness: 15.5mm
- FMSI: 9021-D1792
- OEM Reference: FR3Z2001H
- Axle: Front
- Weight: 3.64kg
Why This Kit?
- Improved braking performance over OEM discs and pads
- Better heat management for repeated braking
- Strong initial bite with consistent pedal feel
- Reduced brake fade under load
- Simple upgrade with direct fitment
Vehicle Fitment
Ford Mustang (6th Generation – S550)
- 5.0 V8 (416BHP)
- Model years: 2015–2024
- Front axle
Important Information
- Direct replacement for factory front brake setup
- No modifications required
- Professional installation recommended
- Always follow correct bedding-in procedure after installation
Why We Rate It
This is one of the best step up brake kits you can fit without going full track setup.
More bite, better heat control and a proper improvement in confidence when pushing on, without ruining daily drivability.
Final Word
If you are looking to upgrade your Mustang’s braking without going over the top, this kit strikes the right balance.
Stronger, more consistent and built to handle real driving.
Reviews
There are no reviews yet.