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Well...... in a miserable attempt to see if BMW used the same filters in the M50i as they do in the M550i.... I learned...... they don't. Gotta send the K&Ns back..... still waiting for K&N to make one for my car I guess.
But...... time was not wasted. Removed those silly charcoal filters in the top side of the airboxes. Not sure if those are a "noise device" or what...... but I do know that be removing them, I literally freed up HALF the airflow.
And.... I found this FLIMSY plastic line that was EASILY rattling against the chassis brace. A little padded tape, a zip tie, some preventative maintenance, and piece of mind.
That's "sorta" a mod...... right?
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