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It isn't the MAF or the oiled filter. It's the fact that it has different flow characteristics than the stock intake. You have one of two choices when it comes to an aftermarket intake. Either it stays near stock flow and doesn't do anything, other than sound better, or it flows significantly differently (maybe good, maybe bad) and will trigger an alert.
It's pretty much pointless unless you unlock the DME and code for the intake on your own car. Besides, all the Eventuri videos I've seen have what appears to be a compressor surge sound. Can't say it is directly caused by the intake, but take a closer listen for it. Maybe I'm wrong about the sound.
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