Amazon.com: Custom Sub Enclosure Subwoofer Box for a Subaru BRZ BR-Z - 2 12" Subs : Electronics
A trunk full of Thunder8000 subwoofers with TH series amplifiers and RoadThunder Xtreme speakers. #mtxaudio | Car stereo, Custom car audio, Car audio installation
Single Woofer Custom Ported Subwoofer Box | CustomLowz