Dynamite Friction 631-73031L Disc Brake Rotor - Front Left

Reliable Brake Performance for Audi S4

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-73031L) is engineered to provide consistent braking performance for your Audi S4. Designed with precision, this vented disc brake rotor offers enhanced heat dissipation and improved stopping power under demanding conditions.

• Disc type: Vented, drilled, and slotted for optimal cooling and debris removal
• Nominal thickness: 30 mm with a discard thickness of 28 mm for durability
• Surface finish: Plain disc with zinc silver hat finish and rust-resistant coating
• Dimensions: 345 mm outside diameter, 47.3 mm overall height
• Bolt pattern: 5 lug holes with 112 mm bolt circle diameter
• Directional brake surface for improved water and dust evacuation

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors that combine drilled and slotted surface technology with corrosion-resistant finishes. This product line is designed to maintain braking efficiency and rotor longevity, especially for performance-oriented vehicles like the Audi S4. The zinc silver hat finish and rust-resistant coating help protect against environmental wear, ensuring reliable operation over time.

Product Details and Specifications

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. The drilled and slotted surface improves water, gas, and dust evacuation, which helps maintain consistent brake pad contact and performance. With a nominal thickness of 30 mm and a discard thickness of 28 mm, this rotor balances durability with safety. The rotor’s 345 mm outside diameter and 47.3 mm height are engineered to fit the Audi S4 precisely, while the 5-bolt hole pattern with a 112 mm bolt circle diameter ensures secure mounting.

Compatible Applications and Problem Solving

• Compatible with Audi S4 models requiring a 345 mm vented disc brake rotor
• Addresses brake fade caused by overheating during aggressive driving
• Reduces brake dust buildup and improves pad bite with slotted and drilled surface
• Helps prevent rust and corrosion on the rotor surface for longer service life
• Maintains braking efficiency in wet or dusty conditions with directional rotor design

Installation Notes and Tips

Ensure the rotor surface is clean and free of any protective coatings before installation. Verify the bolt pattern and rotor dimensions match your Audi S4 specifications. It is recommended to replace brake pads when installing new rotors to optimize braking performance. Proper torque specifications should be followed when securing the rotor to avoid warping or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating and zinc silver hat finish contribute to the rotor’s durability. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliable performance on the Audi S4.