EBC GD1647 Rear Slotted Dimpled Brake Rotors for 2008-2013 BMW 1 Series 135i M13

Vehicle Fitment

• 2008-2013 BMW 1 Series E82/E88 (135i Coupe & Convertible, 3.0L I6 Turbo)
• 2013-2014 BMW M135i (selected markets, 3.0L Turbo Inline-6)

Fitment Notes

• Rear axle application only
• Designed for OE performance and sport brake packages
• Rotor diameter approximately 324-325 mm depending on configuration
• Must confirm OEM rear sport brake setup before installation
• Not compatible with base non-sport rear brake systems

Features

• GD Series slotted and dimpled high-performance rotor design
• Wide-angle slots improve pad bite and gas evacuation
• Dimpled surface reduces thermal stress vs fully drilled rotors
• Enhanced braking stability under high-speed driving conditions
• Improved wet-weather braking performance
• Reduced brake fade during repeated hard stops
• OE-grade grey cast iron construction for durability
• Geomet anti-corrosion coating for long-term protection

Specifications

• Position: Rear
• Diameter: 324-325 mm
• Thickness: 22 mm (new), ~20 mm discard
• Material: OE-grade grey cast iron
• Rotor type: Vented
• Bolt pattern: 5x120
• Surface finish: Geomet anti-corrosion coating
• Design: Slotted and dimpled

Included Components

• 2x EBC GD1647 Rear Brake Discs (Left + Right)

Product Description

The EBC GD1647 is a high-performance rear brake rotor set designed for BMW 1 Series E82/E88 platforms, particularly the 135i and M135i models equipped with factory sport braking systems. As part of EBC's GD Series, these rotors feature a slotted and dimpled surface designed to enhance braking consistency, improve heat management, and reduce brake fade under spirited driving conditions.

The slot pattern continuously clears dust, gases, and debris from the brake pad surface, ensuring strong and consistent pad contact. The dimpled design helps reduce thermal stress compared to fully drilled rotors, improving durability while maintaining effective heat dissipation.

Manufactured from OE-grade cast iron with a corrosion-resistant Geomet coating, the GD1647 provides long service life and stable braking performance. It is intended as a direct replacement upgrade for OEM rear sport brake systems and must be matched to the correct 324-325 mm configuration for proper fitment and safety.