Forge Motorsport Rear Big Brake Kit 356mm for BMW M3 E90 E92 E93 (E9X) - 4-Piston Calipers, 356x28 Slotted Vented Discs, Braided Lines, EBC Pads - Rear BBK Performance Brake Upgrade Conversion

Rear performance braking upgrade for BMW M3 E90, E92 and E93

Transform the back axle stopping power of your BMW M3 with this rear big brake conversion from Forge Motorsport. Featuring 4 piston calipers paired with 356 x 28 mm vented, slotted rotors, braided stainless brake lines, model-specific brackets and high performance EBC pads, this package delivers serious bite, superb modulation and consistent braking on fast road and track day use.

We have installed this setup for customers and in our own builds. Feedback has been outstanding for pedal feel, confidence under repeated heavy braking and improved heat control that helps resist fade when driven hard.

Why this upgrade

• Large diameter 356 mm rear rotors for stronger leverage and shorter stopping distances
• 28 mm thick vented discs for excellent heat dissipation during repeated high speed stops
• Precision slotted faces to sweep away gases and debris, promoting consistent friction
• 4 piston aluminium calipers for even pad pressure and stable pedal response
• Braided stainless steel hoses to sharpen pedal feel and reduce line expansion
• Supplied with performance EBC pads, brackets and hardware for a straightforward fit

Fitment

Compatible with BMW M3 E90, E92 and E93 models in the E9X series. This rear BBK is designed for the M3 platform and uses vehicle-specific mountings included in the box.

Wheel clearance

19 inch or larger wheels are required. Depending on your wheel design, spoke shape and offset, hub-centric spacers may be needed to clear the calipers.

Installation and support

Professional fitting available at MJ Modifications in Warwickshire. For a tailored installation quote or brake setup advice, email info@mjmodifications.co.uk.

What is included

• 4 piston rear calipers
• 356 x 28 mm vented, slotted rotors
• Stainless braided rear brake lines
• EBC performance pad set
• Model-specific mountings and required hardware

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