Dynamite Friction 830-31170D Disc Brake Rotor - Rear Left

High-Performance Disc Brake Rotor for BMW and Toyota Models

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31170D) is engineered to provide reliable braking performance for select BMW and Toyota vehicles. Designed with a directional, slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.

• Directional slotted and drilled disc surface for improved heat management
• 330 mm outside diameter for precise fitment
• Rust resistant coating to extend rotor life
• Geospec silver grey hat finish for corrosion protection and durability
• Plain disc finish with a discard thickness of 18.4 mm

About the DFC Geoperformance Rotor - Drilled and Slotted Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors that combine drilled holes and slots in a directional pattern. This design improves brake pad bite and helps evacuate gases, dust, and water from the braking surface. The rotors are coated to resist rust and feature a durable hat finish, making them suitable for vehicles that require consistent braking performance in various driving conditions.

Detailed Product Description

This disc brake rotor features a 330 mm outside diameter and a discard thickness of 18.4 mm, ensuring it meets the specifications required for proper brake system function. The rotor’s surface is both drilled and slotted in a directional pattern, which aids in heat dissipation and reduces brake fade during extended use. The plain disc finish combined with a Geospec silver grey hat finish provides corrosion resistance, while the rust resistant coating further protects the rotor from environmental damage. This rotor is compatible with a range of BMW and Toyota models, including the BMW 230i, 330i, 430i, 530i series, and Toyota GR Supra among others.

Applications and Problem Solving

• Reduces brake fade during aggressive or prolonged braking
• Improves braking response in wet or dusty conditions
• Minimizes rotor surface glazing and pad deposits
• Protects against rust and corrosion for longer service life
• Maintains consistent braking performance on BMW 330e xDrive and Toyota GR Supra models

Installation Notes and Tips

Ensure the rotor discard thickness of 18.4 mm is observed during installation to maintain safety and performance. The directional slotted and drilled surface requires correct orientation on the vehicle; verify the rotor’s directional markings before mounting. Clean the rotor surface with brake cleaner to remove any protective oils prior to installation. Compatible with BMW models such as the 230i, 330i xDrive, 430i Gran Coupe, and Toyota GR Supra, proper fitment should be confirmed against vehicle specifications.

Quality Assurance

Dynamite Friction manufactures the 830-31170D rotor to meet or exceed OEM standards for durability and performance. The rust resistant coating and Geospec silver grey hat finish contribute to extended rotor life. While no specific warranty information is provided, the product is designed for reliable operation within the specified discard thickness and fitment guidelines.