A fine-thread knob dials in exactly how much line pressure reduction the rear circuit sees on this compact forged billet proportioning valve, giving precise, adjustable control over rear brake pressure.

Compact Proportioning Valve Specs:

• Pressure adjustment range of 150-1200 psi.
• Up to a 57% maximum decrease in line pressure, more than any other Wilwood valve.
• Fine-thread adjuster knob for precise tuning.
• Includes two 1/8-27 NPT to 3/8-24 inverted flare female fittings for most domestic 3/16 in. hard lines.