Adjustable proportion valve enables custom brake bias for improved safety
Bolt-on installation with metric to standard fittings for broad compatibility
Fixes brake lockup issues common after brake upgrades
Works with both metric and standard hardlines for flexible setup
Direct fitment on stock brake lines for easy replacement
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Wilwood ADJUSTABLE Proportion Valve
Wilwood Proportion Valves are meant to be used on cars that have aftermarket brake systems. When you change your brakes the stock brake proportion valve is no longer useful since it was meant to bring the stock brake system into the correct bias. After you install aftermarket brakes your bias is not equ