Review on Bosch SP0F000050 Style Mechanical Vacuum by Durward Carlson

Love this sensor, I used to have a VDO and where the VDO was rather slow to respond this has proven to be accurate, you can see every gas movement in the needle. It doesn't suffer from any sort of vacuum or boost spatter like some other gauges, which is typical pointer tip vibration that then requires an actuator or silencer to mitigate. Mine is installed on a Volvo V50 with 2.5L. turbo engine.