Its time to clean or replace the K&N type filter that came with my Steeda CAI. It is a 9" filter and a pretty tight fit. I am thinking of down sizing to a 6" filter, maybe a big mouth filter from UPR. What are the pros and cons and do you think it will make a differance on my lightly modded 03, 2.93, cat-back and midpipe. Also anyone with a C&L 95mm MAF inlet, tell me what you think of it. This poll is for under the hood air filters as I am not going with a fender well system.