Thread: 335d air filter
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      03-12-2012, 09:23 AM   #2
jimmylad's Avatar
Drives: e92 335d sapphire black
Join Date: Nov 2010
Location: DERBY

Posts: 566
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I bought a pipercross one IIRC off ebay. Had it 18months ( since I bought the car) & have cleaned it just once (not that dirty).

No need to buy another paper filter & can clean when I see fit. No probs running wise as some say the oil from a sporty filter can play havoc with a MAF sensor. I dont bother with oiling mine. Really cant see the point & it can oly hinder air flow IMHO.

Performance wise who knows as I have no dpf, a remap & can get very good mpg if I feel like it but I'm sure the filter does it's bit.
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