R60 K&N Filter
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I have used them in several cars. Honestly I have no real way to prove if they actually do anything. Some people have issues when re-oiled that it dirties the sensor (MAF). Never had a problem with that, just don't over oil.
I think next time I am going to stick with OEM or an after-market dry filter.
I think next time I am going to stick with OEM or an after-market dry filter.