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Amazon.com: Massive Audio SUMMO64S - 6.5 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 6.5" Subwoofer 200 Watt RMS, 400w MAX Dual 4 Ohm, 1.5 Inch Voice Coil. Sold Individually : Electronics
Anyone tried a Free Air Subwoofer in their GT? | 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt, Mach 1) - Mustang6G.com
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