My Corvette Restoration-VLOG 6 

Here I discuss the application of Dynamat, Dynapad, and mass-backed carpet throughout the car. The result has been nothing less than remarkable.
The car is much, much quieter and there is virtually no heat transfer from the engine and drivetrain into the interior cabin. Applying Dynapad and Dynamat into the door cavities also has resulted in the solid sound you expect to hear when you close the door of a high-end automobile.
Such an improvement!