im with ya there saint.
i had a HKS super power flow sponge filter for my automatic d15b for the the fun of it as i got it for free
it did sound alot better, way better than the stock sound, the crossover pull wasnt noticeable but the crossover noise became a load noticable (i have a very acute hearing)

but lets put it way op, at best your sohc vtec n/a will sound like this (i know you dont have these mods etc. etc.)


where as your trying to achieve this with a sohc vtec

obviosuly wont happen.

as lukey said - vtec is overated. it has become a boys toy when their on their p's because p plates cant drive turbo
in a idodic street racing scene it has like become the new ''dosing'' imo. being a trafficlight hero so the world can hear the vtak kikin in n shiz, but really, its nothing lol