Brand Wilwood Valve is manufactured from high quality aluminum and coated with a durable black anodized finish63% pressure reduction (rear) after 350 PSI knee point30 PSI delay rear-to-front circuitCircuit failure sender activation at 50 /- 10 PSIRecommended maximum operating pressure: 2000 PSIGENERAL INFORMATION: 63% pressure reduction (rear) after 350 PSI...