Well, I finally did it. Installed insulation on the entire floorpan from firewall to rear bumper-including the area behind the seats. WOW!! I had a local, family owned shop do it. They used Stinger Expert Roadkill which I'm told, is regularly used in the stereo industry. It is fairly "dense", has silver foill on one side and self stick adhesive on the other. He purchased a box-which consists of (9) 18"x32" sheets=36 Sq. Ft. Identified as RKX36B. Was able to do everything but the extreme bottom of the center well in the trunk. Impression: Actually a bit surprised at first? But once I got on I-95 it hit home. No more tire/road noise. Actually hear the wind around the A pillars and windows now, at speed. Not a Lexus (and don't want that) but the car also feels much tighter--which you feel in around town driving also. Overall a great investmen--and--why did I wait so long??!! Now for the tire pressure sensors. Look at <www.stingerelectronics.com> BTW, my guy said the box cost him about $250. :dancer01: