2001-2006 CHEVROLET/GMC SIERRA/SILV

This custom vehicle firewall sound deadening and thermal insulation kit by Hushmat covers 100% of your vehicle's firewall, from the base of the instrument panel to behind the pedals. It's designed to reduce aftermarket engine, exhaust drone, road noise, and vibration, while also reducing heat transfer from the engine, headers, exhaust, and catalytic converter. Hushmat Ultra is a lightweight, easy-to-install material that requires no surface prep—just peel and stick. It is self-extinguishing and meets all FMVSS 302 standards. Hushmat claims to lower interior temperatures by over 40 percent.