My 2000 Acura RL is driving a little sluggish, and I believe the it may be a good idea to replace the air filter.

How do I do this? Should I buy a specific type or make of air filter?

Can't go wrong with K&N. They cost more, but all you do when it gets dirty is wash it off w/ a hose and re-oil it. No more paper filters to buy. Its a good investment. Its easy to change, just open the airbox and open the clips and pull off the top of the airbox. There it is. Not hard at all.

I've been looking at getting a K&N air filter for a while. This shop seems to have good deals... do you guys have any experience with them?

K&N Air Filters (http://www.autoanything.com/air-filters/60A2090A0A0.aspx)