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How to Reduce Heat and Noise in Your Muscle Car With High-Tech Insulation » MCP-WOR-1103-INSUL-PIX-26

Note the difference in the decibel readings on the outside of the vehicle (with the engine running), and inside the cabin with the doors shut. While a drop of 13 db might not sound like a lot, keep in mind that they are measured on a logarithmic scale, so a decrease in 20 db represents approximately a 50-percent reduction in sound.

Note the difference in the decibel readings on the outside of the vehicle (with the engine running), and inside the cabin with the doors shut. While a drop of 13 db might not sound like a lot, keep in mind that they are measured on a logarithmic scale, so a decrease in 20 db represents approximately a 50-percent reduction in sound.

Note the difference in the decibel readings on the outside of the vehicle (with the engine running), and inside the cabin with the doors shut. While a drop of 13 db might not sound like a lot, keep in mind that they are measured on a logarithmic scale, so a decrease in 20 db represents approximately a 50-percent reduction in sound.

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