Dynamite Friction 830-31171R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31171R) is engineered for enhanced braking performance on select BMW and Toyota models. Designed with a vented, directional surface, this rotor offers improved heat dissipation and consistent stopping power for vehicles like the BMW 330i and Toyota GR Supra.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Outside diameter: 330 mm for optimal fit and performance
• Nominal thickness: 24 mm with discard thickness at 22.4 mm
• Directional brake surface for improved water and debris evacuation
• Rust resistant coating to extend rotor life
• Hat finish in Geospec silver grey for corrosion resistance and aesthetics
• 5 bolt holes with 16.6 mm diameter and 112 mm bolt circle diameter
• Center hole diameter: 67 mm, compatible with specified BMW and Toyota models

Detailed Product Description

The 830-31171R rotor from Dynamite Friction’s DFC Geoperformance Rotor - Drilled and Slotted line is designed to meet the demands of performance-oriented drivers. Its vented construction allows for efficient heat dissipation, reducing brake fade during aggressive driving or heavy braking conditions. The drilled and slotted surface enhances pad bite and helps channel away water, dust, and gases, maintaining consistent braking performance. The directional design ensures optimal airflow and debris removal, which is particularly beneficial in wet or dusty environments.

Finished with a rust resistant coating and a Geospec silver grey hat finish, this rotor maintains structural integrity and appearance over time. The precise bolt hole pattern and dimensions ensure compatibility with a range of BMW models including the 230i, 330e, 430i, 530i, X3, X4, and Z4, as well as Toyota models such as the GR Supra and i4.

Compatible Vehicles and Applications

• BMW 230i, 230i xDrive, 330e, 330e xDrive, 330i, 330i xDrive
• BMW 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe
• BMW 530i, X3, X4, Z4
• Toyota GR Supra, i4

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Reduced braking efficiency in wet or dusty conditions
• Corrosion and rust on rotor surfaces
• Uneven brake pad wear due to poor heat dissipation
• Vibration or noise from warped or damaged rotors

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 22.4 mm before installation. Properly torque the 5 lug bolts to manufacturer specifications using the 16.6 mm bolt hole diameter and 112 mm bolt circle diameter. Clean the rotor surface before mounting to remove any protective coatings or residues. Directional rotors must be installed with the correct rotation direction to maintain performance benefits.

Quality Assurance

Dynamite Friction rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and Geospec silver grey hat finish contribute to long-term durability. Warranty information is available from the manufacturer and should be consulted for specific coverage details.