Quote:
Originally Posted by javajaws
I find it interesting that BMW has molded this charcoal (carbon) filter into the airbox. Carbon filters can only absorb so much before they stop absorbing things and become useless. I'm not sure what the life expectancy of this carbon filter is (maybe 2-3 years?) but I'm sure there will come a point in its lifecycle that it won't be doing anything for your car except restricting the air intake. And that time may come even sooner if you drive in a lot of traffic and/or smoggy conditions.
My vote...remove the obstruction.
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And u would now this because?