DEI Sound Barrier - 1 x 1 ft Sheet - 2.25 mm Thick - Black (Set of 4) HASZ19CL High-silicon ductile ironBD Diesel Performance

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DEI Sound Barrier - 1 x 1 ft Sheet - 2.25 mm Thick - Black (Set of 4) HASZ19CL High-silicon ductile ironBD Diesel PerformanceProduct Description: Sound Barrier Boom Mat Flex 12 in x 12 in Sheet 2. 5 mm Thick Butyl Rubber Black Set of 4 Since 1995, DEI has been a pioneer in the automotive performance industry. Wrapping the exhaust system or headers on a vehicle with DEI's exhaust wrap will reduce under hood temperatures up to 70% while improving performance and protecting components from extreme power robbing heat.