World's biggest subwoofer - 34" 10,000 watts! In an Indian Fiat Punto - Team-BHP
Undercover subwoofers
Tips for Getting More Bass in Your Car
Amazon.com: Massive Audio SUMMOXL104-10 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 10" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
OE Audio 1800 Watt Active 12" Subwoofer Built in Amplifier HUGE BASS 2022/23 | eBay
Massive Audio HIPPOXL82R - 8 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 8" Subwoofer 900 Watt RMS, 1800w MAX Dual 2 Ohm, 2.5 Inch Voice Coil. Sold Individually : Electronics - Amazon.com