Design Engineering DEI 51405 Interior Insulation Damping Kit

The Design Engineering (DEI) 51405 Interior Insulation Damping Kit is a purpose-built solution for reducing unwanted noise, vibration, and heat inside your vehicle's cabin. Engineered using DEI's proven Boom Mat damping material, this kit is designed to be installed directly against sheet metal surfaces — floors, firewalls, door skins, and trunk panels — to eliminate structure-borne vibrations, squeaks, and rattles at the source.

Key Features:

• Vibration Damping: Boom Mat damping material targets structure-borne vibrations, squeaks, and rattles for a quieter ride
• Thermal Protection: Helps block heat transfer from engine and exhaust components into the passenger cabin
• Pre-Cut Design: CNC-cut panels are sized to cover specific interior areas for a precise, easy fit
• 2mm Damping Material: DEI's high-performance composite construction for maximum noise and vibration reduction
• Easy Installation: Peel-and-stick application with no special tools required
• Versatile Coverage: Suitable for floors, firewalls, door panels, headliners, and more

Designed to be used as the first step in a complete interior comfort system, the 51405 damping kit works best when followed by a DEI Under Carpet Lite insulation layer for combined heat and sound control. Ideal for street rods, muscle cars, trucks, and performance vehicles seeking a cooler, quieter interior.