Dynamite Friction 4502-31249 Disc Brake Kit - Rear

Rear Brake Kit for BMW and Toyota Performance Applications

The DFC GEOSPEC Rotors with 5000 Advanced Brake Pads kit combines coated rear rotors and matched brake pads in one service package. Part number 4502-31249 is built for select BMW and Toyota rear brake applications, including BMW 330i, BMW M340i, BMW Z4, and Toyota GR Supra models.

Key Features

• Complete disc brake kit with rear rotors and brake pads
• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• Dry-processed, dry-shipped rotors ready for installation
• G3000/G11H18 cast iron rotor construction for OE-style durability and stability
• Non-directional rotor finish for more even pad bed-in and quieter stops
• DFC 5000 Advanced pads are post-cured and scorched for stable friction performance
• Premium rubber-steel-rubber shims help reduce noise, vibration, and harshness

Product Line Details

DFC Complete Brake Kits are organized to simplify brake service by pairing the correct rotors and pads for the axle being serviced. The GEOSPEC rotor line focuses on corrosion protection and installation efficiency, while the 5000 Advanced pad line is formulated for consistent friction characteristics across a wide range of vehicle platforms.

Detailed Description

Part number 4502-31249 is a rear disc brake kit engineered for select 2019-2022 BMW and Toyota applications. It is a practical choice for rear brake service on vehicles such as the BMW 330i rear, BMW M340i rear, BMW Z4 rear, BMW 430i rear, and Toyota GR Supra rear. The coated rotor surface helps resist rust better than conventional paint or zinc finishes, and the dry-ready design eliminates the need to clean oil from the rotor before installation. The pads are formulated for stable friction, reduced break-in time, and smoother operation after service.

What This Kit Helps Address

• Rear brake wear on BMW 330i, BMW M340i, BMW Z4, BMW 430i, and Toyota GR Supra models
• Rotor surface rust and corrosion on daily-driven vehicles
• Brake noise, vibration, and harshness during normal braking
• Uneven pad bed-in after rotor replacement
• Time lost during brake service from cleaning coated or oil-preserved rotors

Installation Notes and Fitment

Fits 2022 BMW 230i, rear; 2022 BMW 330i, rear; 2022 BMW 330i xDrive, rear; 2022 BMW 430i, rear; 2021-2022 BMW 430i xDrive, rear; 2022 BMW M240i xDrive, rear; 2022 BMW M340i, rear; 2022 BMW M340i xDrive, rear; 2021-2022 BMW M440i, rear; 2021-2022 BMW M440i xDrive, rear; 2022 BMW M440i xDrive Gran Coupe, rear; 2022 BMW Z4, rear; 2022 Toyota GR Supra, rear; 2019-2021 BMW 330i, rear, M Sport Brakes; 2019-2021 BMW 330i xDrive, rear, M Sport Brakes; 2021 BMW 430i, rear, M Sport Brake; 2020-2021 BMW M340i, rear, Motorsport Engineering Package or Exc Motorsport Engineering Package; 2020-2021 BMW M340i xDrive, rear, Motorsport Engineering Package or Exc Motorsport Engineering Package; 2020-2021 BMW Z4, rear; 2020-2021 Toyota GR Supra, rear, Premium and Launch Edition; 2019 BMW Z4, rear, M Sport Brakes.

Verify rotor design and brake package notes before ordering, especially on BMW models with M Sport Brakes, Motorsport Engineering Package, or original-design aluminum hat rotor configurations. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

DFC GEOSPEC rotors are machined to tight tolerances, finished with a non-directional surface, and inspected for balance and critical dimensions before release. Each rotor includes a 12-month warranty against defects in material and workmanship.