Received the box in a 2 piece configuration and had to put it together before installing, overall finish was excellent, solid construction.
I installed it on top of the factory weather mat, technically I should have removed it but I like the all weather mats so I laid the box on top.
Because I did that, I need to shim the corners of the box, the added material from the all weather mats puts some stress in the center causing it to want to open up in the middle.
This was however my own doing and I recommend removing the weather mats if you want a perfect fit.
Box sounds great and gives me way more storage under the seats and some nice bass.
I used a CT Sounds 12’ Strato. I did have to clean up the mounting hole because it’s about .2 inches too small. I knew that going in already so not an issue for me. The dimensions listed are completely accurate. Make sure you get the dimensions of the sub you intend to use and compare it to the box of course.