It should be just fine,

Originally Posted by
bahnstormer
from the sounds of this, a EAT chip and maf wouldn't play together too well
that sound right?
Considering how adjustable the MAF is. Just set the MAF to give the exact same readings as the stock, and all you have is the stock setup with better airflow.
Now, it could be said that a stock EAT chip would be outperformed by a custom chip tuned to that particular car, but I think the combo of EAT + MAF is an improvement over either by itself, unless the MAF is poorly tuned - which is certainly possible judging from how sensitive the MAF tuning is.
Robin
72 Chevy K10
01 E39 M5