Feature:1. High Strength: The compact and lightweight forged aluminum billet construction makes the proportional valve strong, rustproof and durable.2. Pressure Adjustment Range: The proportional valve has a pressure adjustment range of 1001000 PSI, maximum decrease of 57% in line pressure.3. Purpose: Fine tune front and rear brake balance with an adjustment that allows you to proportionally decrease rear brake line pressure.4. Important Proportional Valves: Proportional valves are often required when upgrading to a rear disc brake or larger front brake.5. Necessary Tools: Universal brake proportional valve is a must have tool for all racing, drifting, rallying and track day vehicles.Specification:Item Type: Brake Proportioning ValveMaterial: Billet AluminumPressure Adjustment Range: 100-1000PSIConnector Size: 1/8NPTApplicable Models: Universal for car modification.Package List:1 xBrake Proportioning Valve4 x Sealing Ring