Hey everyone, I have a 2002 Xterra SE, and have been reading some of the posts, and joined the club today. This summer I plan on getting an intake and exhaust system for my X. I'm planning on going with the K&N FIPK air intake and possibly the calmini exhaust, I have a touch hitch so am planning for the reason to get the calmini. I have done a little research and have seen there is both gibson and stillen systems out there too. Any input and/or opinions on which exhaust system I should go with, and if the K&N air intake is the best be, would be greatly appreciated. thanks all