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Originally Posted by X5Dawg
 My indy mechanic made me take mine out bc he said the oil could foul out the MAF bc it is located so close to the filter - of course I am speaking of the E53, so I am not sure it is in the same location as the E70. |
I agree, stick with a factory filter. On top of the mass air flow sensor, they also let more dirt enter the engine... BMW won't cover your MAF if you use an after market filter.
Craig