O.K. To answer your question, ANYTHING you put in/on the vehicle to reduce noise, heat, and vibration will be an improvement over nothing. I personally believe that you don't have to buy an expensive product to accomplish this. Probably the biggest bargain of the bunch is Thermozite, and probably the most over-rated product is Dynamat. You need to know that these products are intended to dampen sound. They are intended to make a car audio system sound better inside the car, and anything beyond that is just gravy. Put in whatever you can afford to quiet your car down. My only recommendations are to put the thinnest product you can find on the floor of the vehicle under whatever you prefer for carpet padding and any other places where space is at a premium. Beyond that, anything you do will be an improvement. These are just my own opinions. If you believe that there's more to it than what I just described, by all means buy whatever you want and use it.
No one lives forever, the trick is creating something that will.
Last edited by DanTwoLakes; 12-18-2009 at 10:31 PM.