Sound Deadeners - OEM-Style Insulation Kits Made in the USA

Restore your vehicle’s interior with precision-fit automotive sound deadener kits manufactured to OEM specifications for classic cars, trucks, and SUVs. Each kit is custom-cut or molded to match the original floor pan, firewall, and interior contours of your vehicle—delivering a factory-correct fit and measurable reduction in road noise, heat transfer, and vibration.

Our sound deadener kits are available in three materials to match the original factory application: EVA (Ethylene Vinyl Acetate), a flexible foam-like material ideal for floor and firewall coverage; Mastic with Pad, a heavyweight asphalt-based compound laminated with a foam layer for superior damping in high-vibration areas; and Jute, the classic fiber-based padding used as original firewall insulation in many vintage applications. Multi-piece kits are engineered to cover the complete passenger area, firewall, and transmission tunnel for thorough coverage in a single order.

Factory Interiors proudly supplies sound deadener kits made in the USA by Auto Custom Carpets (ACC), the industry’s leading interior manufacturer with nearly 50 years of experience. Use the Vehicle Selector above to find the correct kit for your year, make, and model—or browse below to explore available options. Whether you’re restoring a classic muscle car, truck, or cruiser, our sound deadener kits deliver the quiet, comfortable cabin your restoration deserves.

1975-1977 Dodge W200 Sound Deadener 2pc EVA

Restore a quieter, more comfortable cabin in your 1975-1977 Dodge W200 with this 2-piece EVA Sound Deadener kit. Each piece is custom-cut to match the original floor pan, transmission tunnel, and firewall contours of your Dodge W200 for a precise, factory-correct installation. Lightweight and moisture-resistant, EVA significantly reduces road noise and heat transfer.

1975-1977 Dodge W300 Sound Deadener 2pc EVA

Restore a quieter, more comfortable cabin in your 1975-1977 Dodge W300 with this 2-piece EVA Sound Deadener kit. Each piece is custom-cut to match the original floor pan, transmission tunnel, and firewall contours of your Dodge W300 for a precise, factory-correct installation. Lightweight and moisture-resistant, EVA significantly reduces road noise and heat transfer.

1971-1976 Chevrolet Impala Sound Deadener 8pc EVA

Restore a quieter, more comfortable cabin in your 1971-1976 Chevrolet Impala with this 8-piece EVA Sound Deadener kit. Each piece is custom-cut to match the original floor pan, transmission tunnel, and firewall contours of your Chevrolet Impala for a precise, factory-correct installation. Lightweight and moisture-resistant, EVA significantly reduces road noise and heat transfer.

$167.25
• SALE $110.95
Select Color/Material Options  
1971-1976 Chevrolet Impala Sound Deadener 8pc EVA
1973-1976 Chevrolet El Camino Sound Deadener 10pc EVA

Restore a quieter, more comfortable cabin in your 1973-1976 Chevrolet El Camino with this 10-piece EVA Sound Deadener kit. Each piece is custom-cut to match the original floor pan, transmission tunnel, and firewall contours of your Chevrolet El Camino for a precise, factory-correct installation. Lightweight and moisture-resistant, EVA significantly reduces road noise and heat transfer.

$167.25
• SALE $110.95
Select Color/Material Options  
1973-1976 Chevrolet El Camino Sound Deadener 10pc EVA
1973-1976 Pontiac LeMans Sound Deadener 10pc EVA

Restore a quieter, more comfortable cabin in your 1973-1976 Pontiac LeMans with this 10-piece EVA Sound Deadener kit. Each piece is custom-cut to match the original floor pan, transmission tunnel, and firewall contours of your Pontiac LeMans for a precise, factory-correct installation. Lightweight and moisture-resistant, EVA significantly reduces road noise and heat transfer.

$167.25
• SALE $110.95
Select Color/Material Options  
1973-1976 Pontiac LeMans Sound Deadener 10pc EVA