Project Mu FS6 6POT Front BBK 380x32mm for 2013+ FRS/BRZ/86 2022+ BRZ/GR86
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OVERVIEW
Dominate track temperatures and maximize front braking force with the flagship Project Mu 6POT FS6 Forged Front Caliper Kit for 2013+ GR86 / BRZ / 86 / FR-S (ZN6/ZC6/ZN8/ZD8). Designed as Project Mu's ultimate high-output front braking system, the FS6 features a heavy-duty forged aluminum 6-piston caliper housing staggered 30mm, 36mm, and 38mm pistons. This progressive piston sizing balances pad pressure distribution across the friction face, eliminating pad taper and delivering precise threshold control. Paired with massive 380mm x 32mm 2-piece floating straight 8-slit rotors, the FS6 delivers unmatched heat sink capacity and stopping leverage for high-horsepower builds and intense endurance racing.
| Caliper Feature / Spec | FS4M Street 4POT | FS44S Slim 4POT | FS44 Full-Size 4POT | FS6 Flagship 6POT (380mm) |
|---|---|---|---|---|
| Axle Position | Front Axle Specific | Front Axle Specific | Front Axle Specific | Front Axle Specific |
| Caliper Profile & Architecture | Compact Street Body (144.5mm W) | Slim Body (140.2mm Width) | Standard Full Body (156.25mm W) | Flagship 6POT Forged Body (153.0mm W) |
| Piston Configuration | 38mm Pistons x 4 | 38mm Pistons x 4 | 41mm Oversized Pistons x 4 | Staggered 30mm / 36mm / 38mm Pistons x 6 |
| Rotor Specs & Diameter | 315mm x 30mm (1-Piece) | 332mm or 355mm x 28mm (2-Piece) | 345mm or 355mm x 32mm (2-Piece) | Massive 380mm x 32mm Heavy-Duty (2-Piece Floating) |
| Target Application | Street / Canyon / OEM 17" Wheels | Street & Track (High Spoke Clearance) | Heavy-Duty Track / High Torque 4POT | Maximum Thermal Capacity / Circuit Endurance (18"+ Wheels) |
FEATURES
- Flagship Forged 6-Piston Architecture: High-rigidity forged aluminum alloy body optimized for maximum braking torque and structural stability under extreme heat.
- Staggered Piston Diameters: 30mm, 36mm, and 38mm pistons ensure uniform pressure distribution across the pad length, preventing uneven taper and maximizing pad life.
- Massive 380mm x 32mm Floating Rotors: Extra-large diameter 2-piece floating rotors provide maximum thermal absorption surface and enhanced cooling airflow.
- Straight 8-Slit Rotor Face: Degasses pad friction material, evacuates dust, and refreshes the pad bite surface under hard braking.
- Dual Hydraulic Seal Protection: Outer dust seals protect internal fluid seals from brake dust, grit, and track debris.
WHAT IS INCLUDED
- 2x Project Mu FS6 Forged 6-Piston Front Calipers (Signature Teal Finish)
- 2x Project Mu 380mm x 32mm 2-Piece Front Brake Rotors (Straight 8-Slit)
- 4x Project Mu Performance Front Brake Pads (Standard NS-C Compound)
- 2x Heavy-Duty Steel Caliper Mounting Brackets & Hardware
- 2x Stainless Steel Braided Brake Lines with Teflon Inner Core
- Pad Support Springs & Complete Installation Hardware
PART NUMBERS
- Manufacturer Part Number: FS6-F103C
SPECIFICATIONS
- Position: Front Axle
- Caliper Type: Forged Aluminum 6-Piston Flagship Body (FS6)
- Piston Diameter: Staggered 30mm / 36mm / 38mm (x6 total per caliper)
- Caliper Dimensions: Length: 288.0mm | Width: 153.0mm | Height: 74.0mm
- Rotor Dimensions: 380mm Diameter x 32mm Thickness (2-Piece Floating)
- Rotor Venting / Slits: Vented with Straight 8-Slit Pattern
- Standard Included Compound: Project Mu NS-C (Optional: TYPE PS or D1 spec ZERO)
- Finish: Hard Anodized + Signature Teal Powder Coat
FITMENT
- 2022+ Toyota GR86 (ZN8) & Subaru BRZ (ZD8)
- 2013-2021 Toyota 86 / Scion FR-S (ZN6) & Subaru BRZ (ZC6)
- *Requires 18-inch or larger aftermarket wheels (check wheel template for barrel and spoke clearance)
DISCLAIMER
- Backplate Processing Required: Installation requires trimming or modifying OEM front brake dust shields/backplates.
- Non-Affiliation & Warranty: Direct parallel import of authentic JDM components. We are an independent retailer, not an authorized Project Mu dealer. Factory warranty applies in Japan only.
- 14-Day Defect Window: Customers must inspect all parts upon arrival. Defect, damage, or missing part claims must be reported within 14 days of delivery and prior to installation. Installed items are non-returnable.
- Installation: Manuals are in Japanese. Professional installation by a certified technician is required.
