On my first project I put the original type floor material back in the car. It worked well but this time I am thinking something different.
I was contemplating spraying the floor and firewall with a rubberized undercoating or truck box bedliner material.
What have you done and how well did it work?
tx

I would imagine that the rubberized undercoating would serve as good sound deadening...I will also soon be doing this...

I used Fat Mat (www.fatmat.com). Just as good as DynaMat, and a lot less expensive.

be wary of Directed Audio Products.
thats all I can say.

I've got a good supply of B-Quiet "Brown Bread", if you are interested.

Check out the site: http://www.b-quiet.com/bmw.html

Brown bread 50 sq ft - $129.
Fatmat
Fatmat 50 sq ft - $59.

How much do you want for yours?
Tx
Doug

What about a spray on rubberized undercoating???

They have a spray on sound deadener called quiet car and under some other name.
I've heard good things about it and I'm going to use it.