The GenV RacePort 'Sensor Cap' allows you to monitor the blow off valve (BOV) position for diagnostic or tuning purposes, a truly unique solution and the first of its kind on the market. This valve suits Peer / Female Flange for fitment to non-turbosmart flanges and chargepipes. If you are using BOV for traction/torque control, knowing how far it's open is paramount to providing insight to optimise the calibration process further. Aside from a calibration benefit, check the logs if you doubt that the BOV is not staying closed when it should be. This has never been easier with the Turbosmart GenV Race Port 'Sensor Cap'