i've ordered the 330ci with sp pkg and hk upgrade... but i've placed the order for the hk upgrade without listening at it.. presently i have a honda civic with pioneer deck and 2 12' pioneer subs..... the deck pumps out 45x4 watts to the interior speakers..... what i wanted to know is how the bass performs in the upgrade.. i am not really expecting a pounding bass from the subs.. but please be honest and give details from your car.