Wilwood Tandem Master Cylinder Mounting Bracket Kit w/ Prop Valve

Wilwood Disc Brakes 260-13190: Brake Proportioning Valve Knob Adjustable100 – 1000 psi Aluminum Black 3/8-24 in. Inverted Flare Female Threads Kit – Wilwood brake proportioning valves are adjustable between 100 and 3000 psi depending on model with a twist of a knob or the flip of a lever and most can reduce pressure up to 57 percent. They let you adjust brake bias quickly and easily to compensate for changing track conditions or for big and little tire combinations.