Home / Performance / Bo1 Dump Valve View basket “45mm External Wastegate” has been added to your basket. Bo1 Dump ValveR1,254.00 A Universal Atmospheric Dump/ Blow off Valve. 15 in stock Bo1 Dump Valve quantity Buy now Categories: Dump Valves, Performance Tags: Dump Valves, Performance Product ID: 592 Description Description A Universal Atmospheric Dump/ Blow off Valve. Related products Subaru Dump Valve (Off Set Flange) R1,628.00 Buy now Super Sequential Dump Valve R1,800.00 Buy now Subaru Dump Valve (Straight Flange) R1,714.00 Buy now 45mm External Wastegate R4,950.00 Buy now