X2 on what Stan said. Save the money.
A C.A.I. is nice if you are driving a mall crawler, but, the 1st puddle you splash through will give your engine a drink of water.
A snorkel is cool too, I have one, but not for the same reasons that you want one. I have a carburetor. And an aftermarket air cleaner is worse than a C.A.I., so I went custom snorkel instead.
The difference between a stock air cleaner box and a C.A.I. or a snorkel kit as far as CFM goes, is so minimal that you wont be able to feel a difference in performance.
'87 YJ, 4.2L built and bored, 8.5" of lift, 8.8 rear, AX15/NP 231, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...