The SML Hybrid Blow Off Valve is TurboXS's newest blow valve and is designed specifically to replace the blow off found used on stock turbochargers found in many current performance vehicles. The valve is simply one of the coolest blow off valves we have released in years and feature a dual o-ring design. The valve design allows the use a soft spring that creates fast response while still giving you excellent high boost pressure capability. Best used with boost levels from 10psi - 30+ psi.