[MattK]

I used what turned out to be a great product from JC Whitney. It is sold in what I think was 4' x 6' rolls at $19 roll on sale. It is foil backed and about 3/8" thick. Depending on how much you want you can cover the whole cockpit with 2 or 3 rolls. They also sell the spray cans of contact cement to glue it down and aluminum tape to cover seams but they can be much cheaper at places like Home Depot. The quality was quite good. It is very dense and glues down quite well. I heard many recommendations before buying it. In addition to the insulating benefits it actually gives the car a more solid feel on the road.

p.s. I beleive JCW has a web site.

-Matt