Brembo 1B3.8031A1 Gran Turismo Big Brake Kit

The Brembo 1B3.8031A1 Gran Turismo (GT) Big Brake Kit represents the pinnacle of high-performance braking technology for street and track applications. By utilizing larger calipers and oversized rotors, this system dramatically increases thermal capacity and brake torque, delivering superior stopping power and fade resistance under demanding conditions.

Two-Piece Rotor System Features:

• High-performance 2, 4, 6, or 8 piston calipers with sequentially sized pistons for balanced braking force
• Available in red, black, or silver caliper finishes
• Two-piece floating hat and rotor assemblies reduce unsprung and rotating weight while improving heat dissipation
• Drilled or slotted rotors available up to 16 inches (405mm) for maximum cooling
• DOT/TÜV approved stainless steel braided brake lines for improved pedal feel
• High-performance brake pads engineered for aggressive use
• Floating anti-rattle hardware for quiet operation
• CNC-machined billet aluminum caliper mounting brackets
• TÜV certification on most applications

One-Piece Rotor System Features:

• Cost-effective alternative with 2 or 4 piston calipers featuring sequentially sized pistons
• Available in red, black, or silver caliper finishes
• Drilled or slotted one-piece rotors up to 14 inches (355mm)
• DOT/TÜV approved stainless steel braided brake lines
• High-performance brake pads included
• Precision-machined billet caliper brackets
• TÜV certification on most applications

All Brembo GT brake systems are fully compatible with ABS and traction control systems. Each kit includes all necessary hardware for complete installation. Proper wheel clearance measurement is critical for fitment—verify your wheel specifications before installation.