BassForms BF112WRX Custom 12" Fiberglass Enclosure for 2000-2007 and Subaru WRX Custom 12" Fiberglass Enclosure For 2000-2007 Subaru WRX Mounts seamlessly into right side corner space of cargo area Constructed with 4 layers of 2oz. Matting: 100% Fiberglass Airspace: 1.0 / Speaker Depth: 7.09