I have a new 07 X SE with only about 2k on it so far. I would like to keep it a while and people are saying that the K&N air filter filters the air better and more efficiently than the stock filter. My question is, are there any stock parts that should be replace to decrease wear and make it last as long as possible? If so, what are the best brands of this part to get/easily install and operate(I've heard some intakes have to be oiled after cleaning some are covered by a box, stuff like that). The reason I would install these is because I do a couple 5 min. trips in my X for the most part, and I know that is not the way to make it last, so anything that helps with that its great, as long as it dosen't add cabin noise.