I am selling my custom made sub box fit for a 2003-2006 350z. The box was built back in 2004 by Sound Advice and holds two 10" subs. I pulled the box out of my coupe b/c I bought the convertible and wasn't going to give the dealer my audio equipment. The box is designed to go in the trunk and sits in the spot behind the roll bar. The backing is made from fiberglass, so it's not all wood. Thats how you those curves were made. I am asking $200 but am open to reasonable offers but I will not give it away as it was very expensive to make. If you have any questions or would like additional pictures, please just let me know. Thanks!