Authorized dealers have to stick with MAP pricing to protect customers in case of a warranty request. You are more than welcome to dm us for a price match, we add an additional $25 to price match orders
the CEL is not the only job for the sensor, the ECU uses the data it's getting from the different sensors to adjust fueling, boost, ignition, etc... giving the ECU wrong data on purpose is never a good idea as the ECU might make adjustments based on the flawed data it's getting. For example...