A full atmospheric BOV for racers and serious enthusiasts who want to be noticed. Supersonic provides a superior flow performance with the famous Supersonic sound. Featuring a tool-free adjustment via a rotating cap and a positive-seal piston this is Turbosmart loudest BOV. .
BOV5 Vent to Atmosphere (Supersonic) BOV
Quick-Release V-Band clamp
Yellow Spring (rated -22 to -20 InHg) installed
38mm weld flange