Basically the cabin noise is getting pretty bad in my car. After I installed the OBX header, it just got worse. I'm working on getting all of the engine and exhaust mounts, so that wont be an issue. I was just wondering if anyone has used anything less expensive and just as productive as dynamat to insulate their vehicle, not just for road noise but for the two 15" subs I have in the back as well. At the same time though, I would like to know if anyone has dynamat installed, because if it works like a charm I wont even care about forking some money out. It's funny because I like to save my money, but when it comes to my car I don't have a budget lol.