Kicker L7 G Body Monte Carlo SS Buick Regal Oldsmobile Cutlass 6x9 Notches Speaker Box Sub Subwoofer EnclosureCustom fit for the GM's G Body Will fit the 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 Oldsmobile Cutlass Monte Carlo SS Buick Regal Grand National Pontiac Grand Prix BOX WILL NOT FIT THE AEROCOUPE 12" Ported design shown above Cutouts on the back corners will slide underneath aftermarket 6x9's Most of the box will fit underneath the back deck Box constructed of 3 4" MDF, glued and nailed About 5 cuft of total airspace Dual chambered