Interchangeable tuning springs for the BOV50c blow off valve from Nuke Performance, available in six different versions, ideal for all boosts.Perfect for all levels of boost, thanks to its adaptability with a diverse selection of interchangeable springs, catering to your specific requirements.Nuke Performance Blow Off Valve BOV50c V-Band offers unparalleled flexibility with a choice of six interchangeable tuning springs, ideal for any boss. The BOV50c has a "blue" spring pre-installed, and changing to another spring is very easy thanks to the three-bolt design.* The BOV50c is equipped with a pre-installed blue spring.** Used for supercharger applications onlySelect the BOV spring pressure rating based on your engine's idle vacuum reading when the engine has ideal operating temperature. Boost is not related to spring pressure; it is only associated with vacuum. The lowest spring (light gray) is specifically designed for superchargers and is not intended for use with turbochargers.These springs only work with the BOV50c from Nuke Performance the first generation BOV50 blow off valves use a different series of springs (available here).Quantity: 1pc• BOV50c Spring Pressure ChartMeasure engine vacuum at idle and with engine at operating temperature.< Supercharger only Light Gray Spring # 9200-01-016 ** < -0.27 to -0.39 BAR (-8 to -11 inHg) Green Spring # 9200-01-017 < -0.40 to -0.52 BAR (-12 to -15 inHg) Magenta Spring # 9200-01-018 < -0.53 to -0.65 BAR (-16 to -19 inHg) Blue Spring # 9200-01-019 * < -0.66 to -0.75 BAR (-20 to -21 inHg) Red spring # 9200-01-020 < -0.73 to -0.79 BAR (-22 to -23 inHg) Black spring # 9200-01-021 * BOV50c comes with a pre-installed blue spring** used for supercharger applications onlySelect BOV spring pressure rating based on your engine's idle vacuum reading when the engine is at operating temperature.Boost is not related to spring pressure; it is only associated with vacuum.• FAQ: How does a blow-off valve work
