If you have a factory audio system installed on your bagger, you are missing something. Low bass. And if you don’t have low bass your are missing half of the music you are listening to. You need a good sub-woofer to handle the lower end of the audio spectrum. Hell’s Foundry just introduced an integrated drop-in subwoofer system designed to fit into H-D’s King and Ultra Tour Paks. This is not a generic bass tube, but a complete form fitted liner/enclosure packed with an 8” Polk Audio marine rated subwoofer, a 500 watt Sony Xplod® mono-block amplifier and simple “plug and play” wiring. It can easily be added to any system to add serious depth and punch. Hell’s Foundry offers complete audio upgrade solutions for your Bagger. Call Derik Jones on my behalf at 866.999.4355 or visit Hell’s Foundry.