SoundBox Silverado/Sierra Extended Cab 2007-2013 Single 10'' Subwoofer Enclosure

Not sure why everyone is writing bad reviews about this box. It doesn't fit perfect perfect, (it's sticks out from the side of the seat to make it sit where the sub doesn't hit the floor) but everything works as it should. Sits under the seat good, goes over the transmission tunnel like it should and fits sub like it should (rockford 10" shallow sub). Only giving it 4 stars because I think it should fit under the seat better and not stick out past a lil, and with the speaker wires came out the back vs the side next to the door. Other than that great price and great product.

This box was a perfect fit!!!! I don’t know why people are leaving negative reviews. Installation was easy!!! Great sound!!! Very happy with the product and will be definitely buying one for my truck. Thanks

Biggest piece of crap box ever.... doesn't fit a 10" sub doesn't fit a 09 extended cab Silverado. Sounds like crap after having to make the subwoofer fit. Would not buy again ever.... please do not buy you will not be pleased.

This box does not fit correctly in a 2013 Chevy Silverado extended cab. Sure, the box fits under the seat but that's it. The subwoofer touches the floor so it distorts the base. This definitely is not a custom box made for a Chevy Silverado extended cab. Will be looking for a replacement. If you are looking for a customized box to fit under the rear seat, this is NOT it.

Just like the other reviewers said, DOES NOT FIT RIGHT AND HITS THE FLOOR OF THE TRUCK!!!