hey guys...i have a 96 sts and i ordered 2 15-inch l7s...i wanted to get a ported box because i knew it would bump more but it wouldnt fit in my trunk (my trunk's height is about 17") and so i had to go w/ a sealed box w/ a height of 16.5". Do you guys think the system will still slam? im not sure bout the amp yet, my friend knows how to install systems and he was gonna take care of that...but if u guys know plz tell me whether the subs will hit or not and also if i can make them hit hard w/ the factory face unit