Dynamic Friction 830-31055D DFC GeoPerformance Drilled Slotted Disc Brake Rotor

The Dynamic Friction Company (DFC) 830-31055D GeoPerformance Drilled and Slotted Brake Rotor delivers enhanced stopping power and heat management for drivers who demand more from their braking system. Engineered to meet and exceed OEM standards, this rotor combines a precision-machined drilled and slotted surface design with DFC's proven manufacturing processes for reliable, fade-resistant performance.

Drilled & Slotted Performance Design:

• Cross-drilled holes reduce heat buildup on the rotor surface during aggressive braking, with chamfered edges to minimize the risk of cracking
• Machined slots continuously sweep away brake dust, road debris, and gases from the pad surface, preventing pad glazing and maintaining consistent bite
• Combined drill-and-slot pattern improves wet-weather stopping distance by increasing pad-to-rotor contact and clearing water from the friction surface

OEM-Grade Construction:

• Cast from premium G3000/G11H18 iron for superior strength, stability, and long service life
• Engineered to match the OE vane configuration, including OE split-core technology for maximum heat dissipation
• CNC-machined to tight tolerances with a non-directional surface finish for faster, more even brake pad bed-in and quieter stops
• 100% precision mill-balanced for vibration-free performance at all speeds
• Vane interiors dipped with a specially formulated paint to improve airflow and reduce machining variation

Quality Assurance:

• Every rotor passes a 100% inspection station measuring all critical attributes to confirm OE specification compliance
• Direct-fit replacement — no modifications required
• New in box and ready to install

The DFC 830-31055D is an ideal upgrade for performance-minded drivers seeking improved braking response, better heat management, and longer rotor life compared to standard blank rotors.