Thread: E90 330i Best air filter for noise
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      11-01-2018, 05:54 AM   #2
rasa bmw
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Drives: 640d sport/f31 330d x drive
Join Date: Jul 2017
Location: northumberland

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stick to paper oem,,does whatbit says "filters" foam etc are better for flow but no gains..also let particles through which can damage a turbo fans..etc etc i know yours aint got one,,but just saying
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