I have two choices for the K+N filter I will be purchasing for my Custom CAI I am making. Both are tapered (bottom bigger then top). One with a Base of 5.5 inches and Top of 5.0 and Length of 6.5, The other is a base of 6 inches and Top of 4 inches and a length of 8.75. What fits in the front of my b14. I would rather not take the whole thing apart to measure. My gut tells me the bigger one will fit fine.

Steve

Follow your gut.

Its 90% correct most of the time.