StopTech 4-Piston Rear Big Brake Kit
Take your vehicle's stopping power and pedal feel to the next level with the StopTech 4-Piston Rear Big Brake Kit. Exclusively developed by SOS Performance, this high-performance system combines StopTech ST-41 Calipers, oversized 345 mm rotors, and stainless steel lines to deliver exceptional heat dissipation, reduced brake fade, and an aggressive look behind your wheels-all while retaining full factory ABS functionality.
Key Features
- StopTech 4-Piston Calipers: Features rigid ST-41 4-piston calipers designed for maximum clamping force and precise pedal response.
- Oversized 345mm Rotors: Substantially increases thermal capacity and leverage over factory rear brakes.
- Custom Rotor Finish Options: Available in Plain, Drilled, Slotted, or Drilled & Slotted patterns to suit your driving style.
- Firm, Responsive Pedal Feel: Includes DOT-compliant StopTech stainless steel braided lines to eliminate rubber hose expansion.
- Low-Dust Ceramic Pads: Ships with StopTech ceramic brake pads for quiet, smooth, and clean stopping power.
- Retains Factory ABS: Fully compatible with OEM anti-lock braking systems.
Specifications & Fitment Notes
Fitment (6-Lug Models Only):
- 2003–2009 Toyota 4Runner
- 2007–2009 Toyota FJ Cruiser
- 2001–2007 Toyota Sequoia
- 2003–2009 Lexus GX470
- Wheel Clearance: Requires 17" or larger diameter wheels.
- Installation Note: Trimming of the factory OEM rear dust/backing plate is required for installation.
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- 2003-2009 4Runner
- 2007-2009 FJ Cruiser
- 2001-2007 Sequoia
- 2003-2009 GX 470