By putting a kn&n airfilter in an Acura TL, can small particles get through it and cause damage or wear on the engine?
if you mean a K&N air filter, you dont have to worry about quality it is one of the best quality air filters on the market, if not the best today.dont worry about any particles getting through a K&N filter.
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How to clean a K&N air filter this method is the same no matter how your filter looks like remember: you must oil the filter. the oil is used ...
In this video I show you guys how to clean and maintain a K&N Air Filter installed in a 2008 Kawasaki Ninja 250R. Enjoy!
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K&N #KN-138 Powersports High Performance Oil Filter Review 
In goes the nice new K&N performance air filter. For a start, it looks much nicer than the lousy old paper filter that's just gone out of it. Also you can see the spaces inbetween the bits are much wider as well, thus increasing airflow, (I'm no scientist, but even I can work that one out)
Charley's old filter, just before replacement.
So you've bought your first running Mini, and you get to your first show, and your mind goes a blank when it comes to buying parts. Do I get that Cooper freeflow manifold? That RC40 looks tempting, doesn't it? Loads of questions went through my mind, then it eventually hit me - I remembered that...