I have newly made fiberglass sub boxes for the passenger side of a g35 coupe for sale. 100% fiberglass with .75" mdf rings and gold plated terminals. Check out the pictures, they speak for themselves. Special promo price of $275 plus $15 shipping to continental U.S. My ebay I.D is mmfabrications if you want to check my references. You can also come check it out in person, I am in Orange County, CA. You can email me at fo0manchu at gmail.com for more info and that second "0" is a zero no an "o" in my email.