I was really skeptical about buying this because i'd read someone else's review about the 12" box not fitting in their Camaro/ Firebird. But I purchased it anyway and I couldn't be happier. I have 2 Excelon 10" subs in it and they sound great. It fits in my Bird like a glove, with enough room for my amps under it. Nice solid construction, with the right subs- making deep solid bass & I can still get to my spare tire & jack on the side. I almost purchased JL's W3 box, but i'm glad I went with this baby! MORE BANG FOR YOUR BUCK!