The Wilwood proportioning valve uses a compact, lightweight (5.2 oz.),
forged-billet design and is an essential component for fine-tuning your
brake system. Pressure adjustments range from 100-1000 psi and provide
for a maximum decrease of 57% in line pressure, the most of any valve.
The valve is typically installed inline to adjust rear brake-line pressure,
but can also be installed to reduce front brake-line pressure in skinny-tire
Pro Street or drag-racing vehicles.
WW 260-8419 - Knob-Style Proportioning Valve