Universal Adjustable Billet Aluminum Knob Proportioning Valve Kit With Bracket For Under Floor Master Cylinders Fine Tune Brake Line Pressure From 100 To 1000 PSI For Custom Tuning And Safer Stopping

Under-Floor Master Cylinder Proportioning Valve, 1-kit
✔️ Adjusts 100-1000 PSI, up to 57% rear pressure drop; 1/8-27 NPT ports

Designed for brake systems where the master cylinder sits under the floor, this universal adjustable billet aluminum knob proportioning valve with a bracket gives you precise control over brake bias. Install in custom builds or performance cars to fine-tune stopping power and balance. The high-strength aluminum and simple bracket ensure a secure fit in tight spaces.

✅ Pressure range 100-1000 PSI for precise bias control
✅ Up to 57% rear brake pressure reduction to balance braking
✅ Two side ports with standard 1/8-27 NPT in/out
✅ Includes mounting bracket for under-floor master cylinders
✅ Billet aluminum, black finish for durability

💡 What is a brake proportioning valve used for in under-floor master cylinder setups? This handy device helps balance braking by adjusting rear pressure, improving control during hard stops. - brake bias adjustment for floor-mounted setups - handy tuning for customizing braking response - reduces rear wheel lockup and improves stopping stability