Dynamite Friction 633-31130L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31130L) is engineered for enhanced braking performance and durability. Designed specifically for select BMW and Toyota models, this vented disc brake rotor features a directional, slotted, and drilled surface to improve heat dissipation and reduce brake fade.

• Compatible with BMW and Toyota vehicles including 230i, 330i, 430i, 530i, 740i, X3, X5, GR Supra, i4, and more
• Vented rotor design for improved cooling and performance
• Directional slotted and drilled surface for efficient debris removal and heat management
• Rust-resistant zinc black hat finish for corrosion protection
• Nominal thickness of 24 mm with a discard thickness of 22.4 mm
• 5 bolt holes with 16.7 mm diameter and 112 mm bolt circle diameter
• Outside diameter of 345 mm and overall height of 64.1 mm

DFC Brake Rotor - Drilled and Slotted - Black Product Line

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction focuses on rotors that combine drilled holes and slots with a corrosion-resistant black zinc finish on the hat. This product line is designed to provide consistent braking performance under demanding conditions by enhancing heat dissipation and reducing surface glazing. The vented rotor design further supports cooling, making it suitable for both daily driving and spirited use on compatible BMW and Toyota models.

Technical Details and Features

This disc brake rotor features a vented design that allows air to flow between the rotor surfaces, helping to dissipate heat generated during braking. The directional slotted and drilled surface improves water, dust, and gas evacuation, which helps maintain consistent brake pad contact and reduces the risk of brake fade. The rotor’s nominal thickness is 24 mm, with a discard thickness of 22.4 mm, ensuring a long service life before replacement is necessary. The zinc black coating on the hat provides rust resistance, extending the rotor’s durability in various weather conditions.

Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves braking response and pad bite on BMW 330i xDrive and Toyota GR Supra models
• Minimizes rotor surface glazing and brake noise
• Protects against corrosion for longer rotor life
• Enhances heat dissipation for consistent performance on 530e and 740i xDrive vehicles

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (22.4 mm) before installation
• Clean rotor surface to remove any protective coating before mounting
• Verify bolt hole alignment with vehicle hub (5 holes, 16.7 mm diameter, 112 mm bolt circle)
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with specific BMW and Toyota models listed for fitment

Quality Assurance and Warranty

Dynamite Friction manufactures the 633-31130L rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and vented design contribute to the rotor’s durability and consistent braking performance. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.