BMW E90 3 SERIES STEALTH SUB SPEAKER ENCLOSURE BOX SOUND BASS UPGRADE CAR AUDIO | eBay
For 06-12 BMW 3 Series E90 E92 - Custom Sub Enclosure Subwoofer Box - SINGLE SUB | eBay
BMW 3 Series Sub Box BMW 3 Series Subwoofer Box E90 Sub Box E92
T1 Audio T1-25BM12B
Custom sub enclosure for 1 series - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)