So I was working on my car this past week, and my dad decides to take apart the stock subwoofer just for the hell of it (he's an electrician, and likes to mess with that stuff), so I decided to take a picture of the inside of the sub. I must say.. not impressive at all. Looks like a 5 inch speaker.. and a 50 watt (RMS) amp. Notice that nice piece of fiberglass they kinda just wedged in there between those two "pillar" things (Yes, thats how it came stock). Anyways, I guess its pretty amazing how well it sounds for what it is.. but it definately isn't much. Guess its time for a 10 inch, nice pair of components up front, and a couple amps.