Brembo 2P3.9044AS GT-S Rear Brake Kit Type Slotted Hard Anodized - 380x28mm 3 4-Piston

The Brembo 2P3.9044AS GT-S rear brake kit delivers professional-grade stopping power engineered for BMW F8X M2, M3, and M4 models. This complete rear axle brake system features 4-piston cast monobloc radial mount calipers with hard anodized black finish paired with 380x28mm 2-piece slotted rotors for exceptional performance on both street and track.

Cast Monobloc Caliper Design:

• 4-piston cast monobloc radial mount caliper body with hard anodized black finish for superior corrosion resistance
• Inner pressure seal with recessed dust boot and stainless steel piston inserts
• Race-inspired ventilated piston design for improved heat dissipation
• Hard anodizing provides extreme thermal and mechanical stress resistance

High-Performance 2-Piece Rotor Assembly:

• 380mm diameter x 28mm width Type 3 slotted rotors for continuous pad surface cleaning
• Advanced high carbon alloy construction with corrosion-resistant plating
• Vented curved 48-vane design maximizes airflow and heat dissipation
• Floating D-Bobbin mounting system with anti-rattle springs reduces noise and vibration
• 16mm air gap and 54mm annulus optimize thermal management

Complete Installation Package:

• Pre-assembled complete rear axle set for straightforward installation
• Brembo engineered CNC billet caliper adapters included
• High-performance brake pads with application-specific friction materials
• Homologated metal braided stainless steel brake lines with adapters
• All necessary mounting hardware for ease of installation

The GT-S series represents the bridge between street and track performance, featuring racing-derived components designed to withstand extreme thermal loads during aggressive driving and track day use. The Type 3 slot pattern refreshes pad surfaces continuously while removing debris and impurities, ensuring stable friction coefficient and consistent pedal feel under demanding conditions.