Pioneer TS-A2000LD2 Shallow-mount 8" subwoofer with dual 2-ohm voice coils at Crutchfield
GRS 8SW-4HE 8" High Excursion Subwoofer 4 Ohm
Buyr.com | Component Subwoofers | 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
TS-A2000LD2 - 8" - 700w Max Power, Dual 2W Voice Coil, Rubber Surround - Shallow Mount Subwoofer | Pioneer Electronics USA
Pioneer TS-A2000LD2 8 inch 250W Car Subwoofer - EACH | eBay
Amazon.com: Pioneer TS-M800PRO 8-Inch PRO Series High Efficiency Mid-Bass Car Speaker Drivers - Pair (Discontinued by Manufacturer), Black : Electronics
Pioneer TS-D68F - 6 x 8 Inch 2-Way Coaxial System - Coaxial car speaker systems - Custom Sounds & Tint