Universal Car Stereo Slotted S Port Dual 8" Alpine Type S S-W8D2 Sub Box Enclosure - Final 2 Ohm | ALPINE-PACK1A
Universal Car Stereo Single 12" Alpine Bundle Type S S-W12D4 Bundle with Rearfire Sealed Sub Box Enclosure with Harmony HA-A800.1 Amplifier & 4GA Amp Kit - Walmart.com
2) Alpine SWR-8D4 8" Inch 1000w Dual 4 Ohm Type-R Car Subwoofers Subs+Crossover - Walmart.com
Alpine W10S4 BassLine Series 10" 4-ohm subwoofer at Crutchfield
Alpine W12S4 - BassLine Series Subwoofer by Alpine. 12" 4-ohm - Car bass sub-woofers - Custom Sounds & Tint
Amazon.com: Alpine S-W12D2 Car Audio Type S Dual 2 Ohm 1200 Watt 12" Subwoofers with Sub Install Kit Package : Electronics
2) Alpine Type-R R2-W12D2 12" 750w RMS Car Subwoofers+Vented Sub Box Enclosure - Rockville Audio
Alpine S-A60M Mono Power Amplifier with R2-SB10V 10 Inch Subwoofer Enclosure