DBA DBA43417 4000 Series HD Front Brake Rotors 348mm

The DBA 4000 Series disc brake rotors are a direct replacement single-piece brake rotor designed for drivers seeking upgraded performance braking above and beyond standard OE levels. This DBA43417 rotor pair fits Toyota Supra A90, BMW Z4, and BMW G-Series vehicles with front 348 x 36mm brake specifications.

Advanced Metallurgy and Heat Management:

• Cast from XG-150 high carbon alloyed iron and undergoing Thermal Stability Profiling (TSP), DBA's metallurgy handles increased stress and heat generated under intense braking applications.
• Features DBA's patented Kangaroo Paw ventilation with 144 diamond and teardrop patterned pillars, achieving up to 30% increase in surface area and 20% improvement in cooling efficiency.
• Thermographic heat paint markings change color at specific temperature thresholds, allowing drivers to monitor rotor fatigue and peak braking temperatures.

4000 Series HD Variant:

• The HD variant features a smooth OE style rotor finish, popular for drivers looking for 4000 Series benefits but requiring an OE style look, such as under controlled race divisions.
• Increased surface area resulting in greater heat dissipation minimizes brake fade and increases braking effectiveness while prolonging service life for both pads and rotors.
• Anti-corrosion coating reduces rust, enhances appearance, and stops unsightly rust formation.

Sold as a pair for complete front axle replacement. Ideal for performance street driving, track days, and demanding braking applications where superior heat management and durability are essential.