Originally Posted by neilyo
I know I am a little behind, Any of you guys had installed the BMW PI? Is the charcoal filter on the BMW PI removed? Any pictures?
There is no charcoal impregnated engine air filter. The OEM air filter is dry paper, the Performance Air Intake is oil impregnated. K/N also makes one that is oil impregnated cloth filter. The air filter size is still OEM, since you are retaining the original air box where the filter is mounted on.