JBL Stadium 82SSI Stadium Series 8" component subwoofer with switchable 2- or 4-ohm impedance at Crutchfield
XL-844 8" Subwoofer
JL Audio 8W3v3-4 W3v3 Series 8" 4-ohm subwoofer at Crutchfield
Alphasonik HSW208 Hyper 200 Series 8” 600 Watts Max / 200 Watts RMS Si | Alphasonik
ZVX-8 | 8" 1,100 Watt Max Power Car Subwoofer - Skar Audio
Amazon.com: CT Sounds MESO-8-D4 1600 Watts Max 8 Inch Car Subwoofer Dual 4 Ohm
3XL-810D 8" Subwoofer
Amazon.com: MB Quart DS1-204 Discus Shallow Mount Subwoofer (Black) – 8 Inch Subwoofer, 400 Watt, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures : Electronics
DB Drive G7 Series 8" Subwoofer – G2 Dynamics, LLC
STRATO-8 - 1200 Watt 8 Inch Car Subwoofer - CT Sounds – CT SOUNDS
TXX-BDC3-8 Subwoofer - Triple Stack
Dayton Audio SD215A-88 8" DVC Subwoofer
AD2208 D2 | AD Store
Dayton Audio SUB-800 8" 80 Watt Powered Subwoofer
Polk Audio db840DVC db Series 8" subwoofer with dual 4-ohm voice coils at Crutchfield