The only reason you would ever need to upgrade the MAF
is if you were doing it as a supporting modification that would go along with a pretty serious power adder, whatever it may be. The only thing you could really do is swap the MAF
housing to a larger diameter, which would change the sensors calibration, requiring a reflash or a custom tune to compensate.
simply doing a larger dia. MAF
, with supporting software changes would do NOTHING for performance without other core power adders/modifications.