Cai

i just had a question. since im getting a b16 for my 91 civic what to i buy for a CAI because alot of the one that i have found are for EX's and Si's but i have a LX. now does it matter if i get one for an EX, and will it work the same on an LX with a b16 motor swap. this has been a question that i have been trying to find an answer to through the internet and have come up empty so can anyone help.