Sound Insulation

[Gmachine1911]

I used Dynamat Extreme which works awesome, but the cherry on top is adding a layer of 1/4" Dynaliner on top of the Dynamat Extreme. I can tell you, in my experience, adding the Dynaliner made as much or more difference in the sound deadening as it did with just the Dynamat. The two work well together as the Extreme blocks heat and takes out the "tinny" sound while the Dynaliner further knocks down the noise and adds very little weight in the process. Good luck!