Dynamite Friction 631-13042R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-13042R) is engineered for Subaru WRX and WRX STI models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Subaru WRX and WRX STI
• Directional slotted and drilled surface for improved brake pad bite and cooling
• Vented rotor design to reduce heat buildup
• Zinc silver hat finish with rust-resistant coating for durability
• Nominal thickness of 20 mm with discard thickness at 18 mm
• 326 mm outside diameter and 63.4 mm height
• Five bolt holes with 12.8 mm diameter and 114.3 mm bolt circle diameter
• Center hole diameter of 58 mm for precise fitment

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface. This design helps to evacuate gases, dust, and water more efficiently than plain rotors, which can improve braking consistency under demanding conditions. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life, especially in environments prone to rust.

Technical Specifications and Features

This disc brake rotor is vented, allowing air to flow between the rotor surfaces to dissipate heat generated during braking. The rotor's nominal thickness is 20 mm, with a discard thickness of 18 mm, indicating when replacement is necessary to maintain safe braking performance. The rotor features a directional surface pattern with both drilled holes and slots, which enhances pad bite and helps maintain clean contact surfaces. The rotor's bolt hole diameter is 12.8 mm, with five bolt holes arranged on a 114.3 mm bolt circle diameter, matching the Subaru WRX and WRX STI hub specifications. The zinc silver finish on the rotor hat and rust-resistant coating on the rotor surface help protect against corrosion.

Applications and Problem Solving

• Improves braking performance for Subaru WRX and WRX STI vehicles
• Reduces brake fade caused by heat buildup during aggressive driving
• Helps prevent rotor surface glazing and brake pad deposits
• Minimizes corrosion and rust on the rotor surface and hat
• Maintains consistent braking response in wet or dusty conditions

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 18 mm before installation. Clean the rotor surface to remove any protective coatings or residues before mounting. Verify the bolt hole pattern and center hole diameter (58 mm) match the vehicle hub. Use proper torque specifications for the five lug bolts to avoid rotor warping. It is recommended to replace brake pads when installing new rotors to ensure optimal braking performance.

Quality Assurance

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet or exceed OEM specifications for Subaru WRX and WRX STI models. The rotor includes a rust-resistant coating and zinc silver hat finish to enhance durability. While specific warranty details are not provided, Dynamite Friction products are designed for reliable performance and longevity under normal operating conditions.