Q-Logic"Customs" Ford Focus ZX3 SVT3 Unloaded 10" Subwoofer Enclosure C1-FOC110 Fits the Following Vehicles and Years: FORD Focus SVT3 and ZX3 2000-2007 Model: QL-C1FOC110 Mounts to side panel on Driver Side in trunk area Volume -.65 Cubic foot Mounting Depth w Magnet up to 6-1/2" Diameter = 7 1/2"