Proflow brake proportioning valves are adjustable between 100 and 3,000 PSI (depending on model) with a twist of a knob or the flip of a lever, and most can reduce pressure up to 57%. They let you adjust brake bias quickly and easily to compensate for changing track conditions, or for big and little tyre combinations.

More From This Category

Wilwood P-Valve, Combo Proportioning W/Mounting Bracket, L/H

Wilwood P-Valve, Combo Proportioning W/Mounting Bracket, L/H

$227.05

Whiteline Brake Proportioning Valve, Extension Bolt, Rear, Toyota/ Foton, 2005-On, Kit

Whiteline Brake Proportioning Valve, Extension Bolt, Rear, Toyota/ Foton, 2005-On, Kit

$45.08

Wilwood Rpv, 10Lb, Inline, Red

Wilwood Rpv, 10Lb, Inline, Red

$34.49