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Is Trunk Soundproofing Effective?

2 Answers

MacNora

07/29/25 12:58pm

Trunk soundproofing is effective. Installing soundproofing cotton in the trunk can absorb some of the energy produced by noise and convert it into heat, which then dissipates. Applying soundproofing and vibration-damping panels to the trunk can effectively reduce vibrations during driving. Adding an additional layer of sound-absorbing cotton can effectively block exhaust pipe noise, as well as tire and road noise during driving. Furthermore, performing the same soundproofing treatment on the wheel arches inside the trunk can better isolate tire noise from entering the cabin. The soundproofing materials used should meet the following standards as much as possible: Lightweight materials: Lightweight is a major trend in the entire automotive manufacturing industry. Lightweight materials, after installation, will not significantly increase the vehicle's weight, which could otherwise lead to higher fuel consumption. They should also have good soundproofing and sound-absorbing performance across a wide frequency range, with long-term stability and reliability. Sufficient strength: The materials should be resistant to damage during installation and use, not prone to aging, have good weather resistance, and a long service life. They should also be clean in appearance and free from pollution.

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ZacharyAnn

08/14/25 2:04am

I previously added sound insulation to my car's trunk, and the results were quite impressive. Especially when driving on the highway, the tire noise was significantly reduced, making the cabin much quieter and even improving music clarity. This is mainly because the soundproofing materials absorb noise vibrations and block external noise transmission paths. I recommend using soundproofing foam or acoustic panels for the materials, and DIY installation isn’t difficult—just ensure a tight fit. Additionally, trunk sound insulation can reduce vibrations affecting other components, enhancing overall driving comfort. If you frequently take long drives, the investment is worth it. Don’t forget to periodically check the seal to ensure long-term effectiveness.

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