Installing Dynamat - Cut Down The Buzz

While Dynamat Xtreme does not require heat like some products, laying it outside in the sun does make it a little more flexible.

First a sheet of Dynamat on the floor for fitting. This piece fits great, so it won't be cut down. The paper backing is removed after test fitting the sheet in the floor. The adhesive is ridiculously sticky, so wearing old clothes is advised.

The mat has a foil back, so it conforms to the corners and corrugations of the floor pan.

Using a rubber roller, the mat is pressed into the crevices and corners of the floor. This step is crucial to achieving proper sound dampening and adhesion.

The tranny hump presents its own obstacles. A sheet of trimmed mat is laid over the hump with the paper still in place.

Using a razor knife, the mat is trimmed in several places to create a pattern for the hump.

With the paper removed, the mat is applied and given the roller treatment. Anything more than 75 percent coverage is adequate for proper sound deadening. Notice how the section behind this mount for the console is left bare. This assures that the console will fit properly and the section cut out is re-used directly behind it.

When covering the floor pan, the wire chase running to the rear of the car needs attention. Using the rubber roller, the mat was pressed into the channel. The mat is cut away from the factory metal tabs that hold the wire loom in place.

The wire loom lays down in the chase just like normal, keeping the carpet flat without lumps.

Since this is a convertible, the rear seat support tray desperately needs sound dampening. The factory didn't pay any attention to this part of the car and after 35 years, it rattles quite a bit. This is a no-waste operation, any mat removed from a sheet should be used elsewhere.

The seat belt holes get covered during the installation. A razor makes quick work of the mat to uncover the bolt holes.

The entire floor looks like a foil doggy bag. The foil backing helps reject heat, making the interior a cooler place to ride.

The doors have their own vices. The outer skins buzz, rattle and induce wind noise. A few well-placed sheets of Dynamat cure that problem. Sliding the sheets in through the window opening is simple enough. The door skin should be wiped clean before hand.

Once the sheet is in place, the paper backing is removed and the rubber roller comes out again, pressing the mat in place.

The outer panel of the door is home to the window cranks and regulator, two sources of rattles. The mat serves its purpose well here.

Using the edge of the roller to get into the creases maximizes the effectiveness of the Dynamat. Leaving the edges and corners rounded (and not square) limit its capabilities.

The final step in sound deadening the GS is the Dynaliner. This 1/4" foam product rejects heat and wind noise.

The foam pad installs just like the other mat; however, it is easily cut with scissors.

The Dynaliner conforms to the car very well and really makes a difference in wind noise.