Quote Originally Posted by Christian Dietrich View Post
Only real noticeable difference would be if you have a cold air intake which adds about 6hp overall.
Yeah eliminating the stock hot/cold mixer valve on the intake is going to have a greater effect than swapping the filter to a K&N. Keep your paper filter clean w/ a cold air intake and you'll be doing better than a stock setup by a few HP. I've run K&N filters in the past on other cars and have eventually gone back to stock filters and just change them more frequently. I'm over the whole cleaning and re-oiling thing.