Brembo 1M3.9003A1 Gran Turismo Big Brake Kit with Multi-Piston Calipers

The Brembo Gran Turismo (GT) Big Brake Kit represents the pinnacle of high-performance brake technology for street and track applications. This comprehensive brake upgrade system features oversized calipers and rotors that dramatically increase brake torque and thermal capacity, delivering exceptional stopping power and fade resistance under extreme conditions.

Two-Piece Rotor Configuration:

• Multi-piston aluminum calipers (2, 4, 6, or 8 pistons depending on application) with sequentially sized pistons for balanced pad pressure
• 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) in diameter
• Choice of red, black, or silver caliper finishes

One-Piece Rotor Configuration:

• 2 or 4-piston aluminum calipers with sequentially sized pistons
• Drilled or slotted one-piece rotors up to 14 inches (355mm) in diameter
• Available in red, black, or silver caliper finishes

Complete Kit Includes:

• Brembo high-performance brake pads engineered for GT applications
• DOT/TÜV approved stainless steel braided brake lines
• CNC-machined billet aluminum caliper mounting brackets
• Floating anti-rattle hardware for quiet operation
• Complete installation hardware for seamless integration

This brake system is fully compatible with ABS and traction control systems. Most GT applications include TÜV certification. Professional installation recommended. Proper wheel fitment measurement is critical before ordering to ensure adequate clearance for the larger caliper and rotor assembly.