Yellow Speed Racing Front 4 Piston Ultra Big Brake Kit - Honda Civic / Civic Si 2016-2021 (FC) Caliper Model:YSCPF4b With our valved axle-back (optional):

With our valved axle-back (optional): Quad-chamber muffler and OEM-style valves deliver daily-driver civility closed

Bosch ZF #0024668601

Also available as 2-way or 3-way configurations for advanced damping control on some applications

and performance potential

adjustability

Yellow Speed Racing Front 4 Piston Ultra Big Brake Kit - Honda Civic / Civic Si 2016-2021 (FC) Caliper Model:YSCPF4b With our valved axle-back (optional):Yellow Speed Racings Ultra Series Big Brake Kit is designed for road and track use. This big brake kit features optimum braking performance, attractive looks, easy installation and a cost effective price. Factory brakes are designed primarily for daily driving on most applications. If you have added additional horsepower to your vehicle, or frequently compete in motorsports such as circuit racing, drifting, time attack or rally racing, then a big