I've recently lowered my car. It's a 2015 300S V6 RWD. Still have the stock shocks and struts. They're too soft. I plan on upgrading soon but, anyways......I purchased a 12" subwoofer and built an enclosure for it out of 3/4" MDF. It sounded great, hit clean and hard but, it was just too damn heavy. It had to weigh close to 100lbs. All that weight on the driver side of the car including me was causing the car to bottom out and rub on that one side. I took it out and it drives much better. I wanted to see if anyone else had the same problem and what type of subs and enclosure material they used to make it light as possible???? I've heard of lightweight MDF. Never seen or used it. I know I can find a sub or two that will do fine for what I want. I just need some suggestions on enclosure material. Thanks.