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MarcoZandrini · 10-11-2020, 09:34 AM

I believe you're writing about the engine air filter. Don't bother trying an aftermarket set up. BMW engineers spend a lot of time making sure that the air flow into the engine isn't restricted. Just buy the proper Mann air filter.

10-11-2020, 09:34 AM	#2
MarcoZandrini Major 444 Rep 1,264 Posts Drives: 2018 M240i Join Date: Jun 2017 Location: Virginia iTrader: (0)	I believe you're writing about the engine air filter. Don't bother trying an aftermarket set up. BMW engineers spend a lot of time making sure that the air flow into the engine isn't restricted. Just buy the proper Mann air filter.
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