Air to Fuel Ratio Gauge

Power Commander for BMW provides the same highresolution tuning as other models but with the ability to provide onestep adjustment of the fuel mixture in closedloop steady state cruising situations Replaces the less accurate narrowband oxygen sensor with a Bosch 5 wire LSU4 wideband sensor Outside of the closed loop area other fuel adjustments are mapped on the dynomometer as with other Power Commanders An optional black or white faced realtime airfuel ratio gauge is available separately