Brembo 1MD.8004AR GT-S Series Big Brake Kit with Calipers - 4-Piston

The Brembo 1MD.8004AR is a complete GT-S Series Big Brake Kit engineered to deliver motorsport-derived braking performance for spirited street driving and track use. Part of Brembo's renowned Gran Turismo upgrade line, this kit replaces the entire corner brake assembly with high-performance components developed from decades of racing experience.

Key Features:

• 4-Piston Aluminum Calipers: Radial-mounted fixed calipers machined from high-grade aluminum for superior rigidity, reduced weight, and improved heat transfer compared to OEM cast iron units
• Monoblock or Multi-Piece Caliper Construction: Engineered to minimize deformation under extreme braking loads, ensuring consistent pedal feel and brake bias
• Oversized Brake Discs: Uprated rotors with an aggressive drilled finish (AR) to dissipate heat, clear brake dust and gases, and maintain consistent rotor-to-pad contact
• Two-Piece Floating Disc Design: Features an exclusive venting system that increases resistance to thermal shock cracking by over 40% compared to standard one-piece rotors
• High-Performance Brake Pads Included: Friction material optimized for both street and track conditions, providing strong initial bite and fade resistance under sustained heavy braking
• Metal-Braided Brake Lines Included: Stainless steel braided hoses replace rubber OEM lines for improved pedal firmness and durability
• Complete Hardware Kit: All necessary brackets, adapters, fasteners, and installation hardware included for a straightforward fitment
• Compatible with Factory ABS and Traction Control: Designed to integrate with OEM electronic safety systems without modification

Brembo's GT-S Big Brake Kits are developed from the same technology used in Formula 1 and endurance racing programs, and are backed by a two-year warranty. The 1MD.8004AR delivers a significant upgrade in stopping power, brake feel, and thermal management over the stock brake system.