Project Polly - 850 AWD

[Dangerous Dave]

You can pick the cheapo ones up off ebay as you only need the housing so you can swap in the sensor from the standard maf.

[MoleT-5R]

You can pick the cheapo ones up off ebay as you only need the housing so you can swap in the sensor from the standard maf.

won't the 850's maf surface area be under size for the housing then, or do you then adjust the scaling to allow for the smaller surface area of the 850's sensor to the diameter of the maf housing, else I could see some massive leaning out is due to happen as the throttle gets opened.. ??

[Dangerous Dave]

There is a program (available on the M4.4 wikia site) that adjusts the scaling in the ecu to account for the increase in housing size. Basically the stock values are multiplied by 2.24 for the 3.5" MAF