Is Full Vehicle Soundproofing Modification Noticeably Effective?
2 Answers
Improvement is very noticeable, mainly by effectively addressing engine noise, road noise, tire noise, wind noise, and body structure noise for significant results. Below are common classifications of automotive noise: 1. Engine noise: The vehicle's engine is a source of noise, varying with different engine speeds. 2. Road noise: Road noise is formed when the vehicle is driving at high speeds, with wind cutting in creating noise and the driving motion causing chassis vibrations. Additionally, gravel impacting the vehicle's chassis on the road also generates noise, which are the main sources of road noise. 3. Tire noise: Tire noise is produced by the friction between the tires and the road surface during high-speed driving. The level of tire noise depends on road and vehicle conditions; worse road conditions lead to louder tire noise. Moreover, there is a significant difference in tire noise between asphalt and concrete road surfaces.
The improvement from full-car sound insulation modification is actually quite noticeable, especially for older or economy cars. I have a decade-old commuter car where tire and wind noise on highways used to be painfully loud. After installing four-door sound insulation plus underbody armor, the cabin quietness improved by more than one level. However, it depends on workmanship quality - improperly installed door panel clips can actually create new rattles. I spent over 5,000 RMB in total, and the disassembly process looked heartbreaking, but the results justified the price - now I can hear navigation clearly on long drives without turning up the volume, and rear passengers can sleep undisturbed. Of course, don't expect million-dollar luxury car silence levels - you'll still notice noise on roads with aggressive tire roar.
