Brembo 2P3.8067A1 GT Series M4 Rear Big Brake Kit 345x28mm 2-Piece Discs Black Calipers

The Brembo 2P3.8067A1 GT Series Big Brake Kit is a complete rear brake upgrade featuring 345x28mm (13.6") 2-piece composite rotors paired with 4-piston monobloc aluminum calipers in black. This kit delivers motorsport-derived braking technology engineered for both street driving and demanding track day use.

Key Features:

• 4-Piston Monobloc Caliper: Cast from a single billet of aluminum for outstanding rigidity and minimized flex under hard braking
• 345x28mm (13.6") 2-Piece Composite Discs: Oversized rotors with increased thermal mass for superior fade resistance
• Type 3 Slotted Disc Finish: Precision-executed slots clean and refresh the pad surface while dissipating heat and eliminating brake dust and gases
• Advanced Vented Disc Design: Exclusive curved vane venting system improves cooling capacity and increases resistance to thermal shock cracking by over 40%
• Black Powder-Coated Calipers: Striking black finish with the Brembo logo for an aggressive, race-inspired appearance
• Complete Axle Set: Includes both left and right side components for a full rear axle installation
• Pre-Assembled: Kit arrives ready to install with all necessary hardware included
• High-Performance Brake Pads: Application-specific friction material included
• TÜV/DOT Homologated Braided Hoses: Metal-braided stainless steel brake lines included for improved pedal feel and durability
• CNC Billet Caliper Adapters: Brembo-engineered adapters for precise fitment

Brembo's GT Series big brake kits are built on technologies and solutions derived directly from motorsport competition. The 2-piece disc construction allows for thermal expansion while maintaining consistent brake torque, and the monobloc caliper design eliminates flex that can cause a soft or inconsistent pedal feel. This kit represents a significant upgrade over OEM braking systems in both stopping power and sustained performance under repeated hard stops.