Can an Engine Guard Plate Reduce Noise?
2 Answers
An engine guard plate cannot reduce noise. Functions of an engine guard plate: It can mitigate the impact of flying debris and water splashes on the engine during driving; improve the aerodynamic profile of the undercarriage, reducing wind resistance and noise. Methods to reduce engine noise: Install soundproofing cotton or opt for a full soundproofing kit. Additionally, replacing the car's door seals with high-quality ones is also an effective noise-reduction method. Road and tire noise are significant contributors to overall vehicle noise. Owners can further reduce tire noise by switching to high-quality, quiet tires such as Michelin, providing a quieter driving environment.
I've installed an engine underguard several times, mainly to prevent road debris from hitting the engine. As for noise reduction, it helps a little, but that's not the primary reason. I remember once when I was on a long drive after installing the underguard, I felt the wind noise and the sound of road gravel underneath the car were slightly reduced—probably because the underguard blocked some debris, minimizing those noises. However, the engine's roar and tire noise remained largely unchanged, as these are the main sources of sound. I think the underguard might absorb some vibrations or reflect sound, providing a minimal effect, but other methods like soundproofing the chassis are still needed for significant noise reduction. Overall, the core purpose of the underguard is protection, with noise reduction being an unexpected bonus. If budget isn't an issue, installing one is a good idea for peace of mind.
