just sold my 300 quid itg induction kit... put the stock box back on...
difference is the stock box seems alot more responsive than the itg :/
it does not make the sound it used to make with the itg but not that bothered about that now...
so yea noticed it better with the stock box in place.. no change in power etc etc... waste of money imo unless mapped but not even sure if that is right hmm