I own a 97 gt and i am getting ready to put my system in. I have a JL Audio 15 inch W3 and a pretty large box(takes up whole trunk). Now i am basically wondering if anyone has any suggestions about what size subwoofers produce the deepest loudest bass in the gt trunk. I love loud bass but i want clarity as well, i hate the distorted rattle that most loud systems have. My question is should i keep the 15 inch sub or trade it for 2 12 inch subs of equal quality?