Dynamat 10415 Xtreme Speaker Kit

A Dynamat Speaker Kit transforms the flimsy sheet metal in your car door
into a solid, non-resonant baffle. You'll enjoy improved mid-bass performance with
less distortion.

High-performance Dynamat Xtreme is a patented, lightweight elastomeric butyl
and aluminum constrained-layer vibrational damper. It's lighter than Dynamat Original,
requires no heat to apply, and is coated with aluminum for high temperature areas
such as firewalls and floors. Best of it all, it's four times more effective than
original Dynamat in reducing noise!
Contains two 10" x 10" pieces of Dynamat Xtreme (0.044" thick). Ideal for
mounting your speaker to a contoured metal surface like a car door or rear deck.