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      08-22-2025, 12:19 PM   #5
SteveYem
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Drives: 2018 M3 Comp, 2023 X3 M40i
Join Date: Apr 2024
Location: Southeast PA

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Quote:
Originally Posted by deviation01 View Post
For sure I will monitor. Our OEM in take box has a drain hole in the bottom and also a pressurized spring gate. I wonder if that opens to remove unwanted things. I will monitor also for dirt and such.

To me its not different than running an RK intake without a filter cover.

Another reason I plan to stick with stock filter vs K&N etc as they dont filter as much dust to allow more flow.
Curious to see what you find!
Also worth noting that the stock filter has that thin sheet of foam batting glued to the outside, I suppose to act as a pre-filter for any major debris.
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2018 ///M3 Competition 6MT Mineral Grey
2023 X3 ///M40i Brooklyn Grey
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