Dynamite Friction 633-31171L Disc Brake Rotor - Front Left

Overview of the DFC Brake Rotor - Drilled and Slotted - Black

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31171L) is engineered for enhanced braking performance and durability. Designed specifically for select BMW and Toyota models, this vented disc brake rotor offers improved heat dissipation and consistent stopping power under demanding conditions.

• Disc type: Vented, drilled, and slotted for optimal cooling and debris removal
• Outside diameter: 330 mm with a nominal thickness of 24 mm
• Directional brake surface for precise rotor alignment
• Rust-resistant zinc black hat finish for corrosion protection
• 5 bolt holes with a 16.6 mm diameter and 112 mm bolt circle diameter
• Compatible with BMW 230i, 330i, 430i, 530i, X3, X4, Z4, and Toyota GR Supra models

Detailed Product Features and Specifications

This Dynamite Friction rotor features a slotted and drilled surface type that enhances brake pad bite and helps evacuate gases and dust generated during braking. The vented rotor design improves heat dissipation, reducing the risk of brake fade during extended use. The rotor’s discard thickness is 22.4 mm, with a nominal thickness of 24 mm, ensuring it meets OEM specifications for safe operation. The zinc black hat finish provides a rust-resistant coating, extending the rotor’s service life in various driving environments.

The rotor includes five bolt holes with a diameter of 16.6 mm and a bolt circle diameter of 112 mm, matching the stud/lug hole quantity of five. The center hole diameter measures 67 mm, and the rotor height is 66.6 mm. The directional brake surface requires proper installation orientation to maintain optimal braking performance.

About the DFC Brake Rotor - Drilled and Slotted - Black Product Line

The DFC Brake Rotor - Drilled and Slotted - Black line from Dynamite Friction focuses on rotors that combine drilled holes and slots with a corrosion-resistant black zinc finish. This product line is designed to provide reliable braking performance with enhanced heat management and surface durability. The black zinc hat finish helps protect against rust, making these rotors suitable for drivers who demand consistent performance and longevity from their brake components.

Compatible Vehicles and Applications

This rotor is compatible with a range of BMW and Toyota vehicles, including:

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

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during aggressive driving
• Uneven brake pad wear due to poor rotor surface design
• Corrosion and rust on rotor hats reducing component lifespan
• Reduced braking efficiency from gas and dust accumulation on rotor surface
• Vibration or noise caused by warped or damaged rotors

Installation Notes and Tips

• Ensure the rotor is installed with the directional surface oriented correctly according to manufacturer instructions
• Check rotor thickness before installation; discard if below 22.4 mm
• Clean rotor surface to remove any protective coatings or debris before mounting
• Torque lug nuts to vehicle manufacturer specifications to avoid rotor warping
• Inspect brake pads and calipers for wear or damage during rotor replacement

Quality Assurance and Warranty

Dynamite Friction manufactures the 633-31171L rotor to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating and vented design contribute to long-term durability. Warranty details are provided by the manufacturer and should be reviewed prior to installation.