Description
Brembo GT|B4 (Legacy F40) 4-Piston Rear Big Brake Kit
Brembo GT Tier: B — Legacy F40
Upgrade your rear braking system with the Brembo GT|B4 (Legacy F40). This 4-piston 2-piece cast aluminum caliper delivers exceptional stopping power with even pad pressure distribution across all pistons, paired with RH rotors and Brembo HP2000 performance brake pads for a complete bolt-on big brake kit solution.
Complete Kit Includes
| Calipers | Brembo GT|B4 (Legacy F40) — 4-Piston, 2-piece cast aluminum (pair) |
| Brake Discs | RH 2-piece floating rotors (355x32mm / 380x32mm) |
| Brake Pads | Brembo HP2000 performance brake pads |
| Brake Lines | Goodridge stainless steel braided brake lines |
| Mounting Hardware | AME CNC-machined 7075-T6 aluminium bells & vehicle-specific brackets |
Caliper Specifications
| Caliper Model | Brembo GT|B4 (Legacy F40) |
| Position | Rear |
| Pistons | 4-Piston (Differential bore: 38/44mm) |
| Weight (per caliper, no pads) | ~3.5 kg |
| Construction | 2-piece cast aluminum |
| Material | Aluminum |
| Finish | Painted |
| Mounting | Radial |
| Compatible Disc Range | Up to 355mm |
Engineering & Technology
Based on Brembo’s proven F40 caliper platform, the B4 delivers reliable 4-piston performance with time-tested design. An excellent choice for rear brake upgrades paired with higher-tier front calipers.
Performance Upgrade
- Fixed Caliper Design: Eliminates flex and provides consistent pad-to-disc contact across all pistons, unlike factory sliding calipers
- Differential Bore Pistons: Progressively sized pistons distribute clamping force evenly, eliminating tapered pad wear
- Increased Disc Diameter: Larger swept area dramatically improves heat dissipation and braking torque
- Reduced Unsprung Weight: Lightweight aluminum construction improves suspension response and handling
Compatible Pad Compounds
Standard pad: Brembo HP2000
RH Disc & Pad Options
Brake Discs:
- RH — 2-piece floating rotor with CNC-machined 7075-T6 aluminium bell
Brake Pads:
- Brembo HP2000 — Standard compound (other pad options available upon request)
Custom Brake Solutions
At AME MOTORSPORT, we design and manufacture adapters for virtually every vehicle make and model. All our brake kits are engineered for direct bolt-on fitment across a wide range of vehicles.
- AME CNC-machined 7075-T6 aluminium disc bells & vehicle-specific mounting brackets
- Steel brackets available on request for heavy-duty applications
- Goodridge stainless steel braided brake lines
- All necessary mounting hardware included
Brake discs can be customised with square-slot pattern and full-floating conversion. Please contact us for consultation.
Need a different disc size, pad compound, or custom bracket solution? Contact us to discuss your specific requirements.
Warranty
| Brake Calipers | 1-year warranty against manufacturing defects |
| Brake Discs & Pads | Wear components — not covered under warranty |
| Defect Coverage | Includes cracking, material separation, or other failures without external force. Normal wear and damage from misuse are excluded. |
Related Products & Guides
- RH Brake Pads for Brembo B4 (Legacy F40)
- RH Brake Rotors
- All Brake Pads
- All Brake Rotors
- Brembo Big Brake Kit Collection
Lead Time: Approximately 5–14 business days.
Explore more from our collection.
Reviews
There are no reviews yet.