Pioneer TS-SW2502S4 Shallow-mount 10" 4-ohm subwoofer - Stereo West Autotoys
305) Pioneer IBF2501S2 10inch Subwoofer in Box - IBF2501S2
Amazon.com: PIONEER 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
PIONEER 200W 2 x 16cm Flat Slim Amplified Active Car Bass Box Sub TS-WX70DA | eBay
Pioneer TS-1200M 12" - 1400 W Max Power, Single 4Ω Voice Coil, IMPP™ cone, Rubber Surround | Component Subwoofer - Walmart.com
TS-SW3002S4 - Pioneer 12" 1500W Single 4-Ohm TS Series Shallow Mount Subwoofers