Reduce the effects of engine rumble, speaker rattle, road noise and buzzing vehicle parts with this sound-dampening material that features an aluminum coating for use in high-temperature areas, such as firewalls and floors.
I completely lined the trunk of my Tiburon with Dynamat Extreme and it definitely gets the job done. Great for keeping good noise in and road noise out. Try something small like the door kit first, and it will prove to be one of the best things you can do for your car.