Dynamat Xtreme is the worlds best sound deadening material and can stop the noise of your car engine coming into the car. Dynamat Xtreme is world famous for stopping road noise and stopping your cars resonant surfaces. What the Dynamat material does is stop the surfaces flexing and increases the sound performance of your speaker system. Using Dynamat Xtreme in a simple or large system can give you benefits of Improved Sound Quality, Improved Clarity, Louder Bass Response, Louder bass and can prolong the life of your cars panels. High-performance Dynamat Xtreme is lighter than Dynamat Original, four times more effective, requires no heat to apply and is recommended for vehicle tops, sides and contoured areas. Dynamat Xtreme is coated with aluminium for high temperature areas such as firewalls and floors