Dynamite Friction 4512-31171 Disc Brake Kit - Rear

Rear Brake Kit for BMW 323i, 328i, 325i

The Dynamite Friction DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware, part number 4512-31171, is a rear disc brake kit built for select BMW applications. It combines coated rotors, ceramic brake pads, and matching hardware for a complete rear brake service on compatible BMW 323i, 328i, 325Ci, and 325i models.

Key Features

• DFC GEOSPEC coated rear rotors with a silver-gray corrosion-resistant finish
• Dry-processed, ready-to-install rotor surfaces with no oil cleaning required
• G3000/G11H18 cast iron construction for OE-style durability and stability
• Non-directional rotor finish for more even pad bed-in and smoother braking
• DFC 5000 Advanced ceramic brake pads with post-cured friction material
• Scorched pads to reduce initial break-in time and improve first-stop response
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• Hardware kit engineered with PTFE coating, vulcanized rubber, and stainless steel

Product Details

Part number 4512-31171 is designed as a rear brake service kit for BMW 323i, 328i, 328Ci, 325Ci, and 325i rear brake applications. The coated rotors are machined to tight tolerances, inspected for critical dimensions, and balanced where required to support consistent braking performance. The ceramic pad formulation is paired with hardware designed to maintain proper caliper movement and spring tension, helping preserve pedal feel and braking consistency.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear brake noise from worn pads or fatigued hardware
• Rust buildup on rotor surfaces and rotor hats
• Uneven pad wear caused by corroded or weakened hardware
• Brake pulsation related to worn rear rotors
• Longer stopping distances from aged rear brake components

Installation Notes

Fits 1999 BMW 328i, rear. Fits 2000 BMW 323i, rear. Fits 2000 BMW 328Ci, rear. Fits 2000 BMW 328i, rear. Fits 2001-2005 BMW 325i, rear. Fits 2001-2006 BMW 325Ci, rear.

Before installation, confirm rear axle fitment and compare rotor dimensions to the removed parts. The dry-coated rotors are ready to install, and the pad surfaces are formulated to reduce the need for an extended break-in period. Clean the hub mounting surface and inspect caliper slides, guide pins, and parking brake components before assembly.

Quality Assurance

DFC GEOSPEC rotors are manufactured to OE specifications, inspected for critical attributes, and backed by a 12-month warranty against defects in material and workmanship. The brake pads are post-cured and scorched for stable friction performance, while the hardware kit is built to OE-style form, fit, and function.