Pioneer New TS-A2000LD2 8-inch Shallow-Mount Subwoofer - Walmart.com
Amazon.com: Alphasonik AS8DF 8 inch 600 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Air Tight Sealed Bass Enclosure :
RetroSound R-TW84: R-TW8 Series Flat Subwoofer 8" Round - JEGS
AS8DF 8 inch 600 Watts 4-Ohm Down Fire Shallow Mount Flat Enclosed Sub woofer | eBay
Alphasonik Dynamis DCP8 | Alphasonik
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Focal IFBMW-SUB.V2 - Flat Subwoofer 8 Inch (200mm) - Dedicated for BMW - Car subwoofers - Custom Sounds & Tint
Amazon.com: Retro Manufacturing Sealed MDF Enclosure for Flat 8-inch Subwoofer with Grill R-TWENCL : Electronics
Amazon.com: Alphasonik Dynamis DCP8 8 inch 1000 Watts 4-Ohm Shallow Mount Flat Enclosed Sub woofer in Ported Vented Box for Tight Spaces in Cars and Trucks, Slim Thin Loaded Subwoofer Custom Port