I used a product from eastwood call thermo-coustic sound deadener. Its the exact same stuff as dynamat but was less expensive. i used it from firewall to trunk in my 71 mach 1 and it worked wonders. just wish i would have done roof and doors with it also. my feet no longer cook and you can have a conversation in the car without yelling. definately worth the time and effort to install. i may have a few pics of mine all done up. i will see if i can find them and post them up. heres a link... http://www.eastwood.com/eastwood-thermoc...erial.html
Good review.

It will be nice to see the outcome of the product in your car.

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