Sound Deadening Project

[atlcivic]

Big shout out to op and Johnloov for this thread. I am sound deadening my type r after experiencing some very bad highway roads on a CA to Vegas trip and this info is very helpful. Just finished trunk, backseat and rear wheel wells. Doors are next! I come from owning a few amgs prior to this and miss that vault feeling. Although the type r is an amazing car... I think Honda could've done a bit more to combat road noise while maintaining a lightweight chassis. But its still a Honda so I get it. So far worth it after some back stretches, Cheers.

I’m going to look into doing this at some point also. Has what you done so far made a noticeable difference? And what products did you use?

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[Jhatmaker]

I’m going to look into doing this at some point also. Has what you done so far made a noticeable difference? And what products did you use?

I am a bit of an audiophile so I personally notice a difference. It definitely has not gotten rid of road noise altogether but I have felt an enhancement in speaker audio and a quite minimal reduction in nvh for sure. Using kilmat and 157mil closed cell foam. As previously mentioned it all adds up so I think after I finish doors, and maybe floor if i can't help myself, I expect a noticeable difference then.

 

[johnloov]

I am a bit of an audiophile so I personally notice a difference. It definitely has not gotten rid of road noise altogether but I have felt an enhancement in speaker audio and a quite minimal reduction in nvh for sure. Using kilmat and 157mil closed cell foam. As previously mentioned it all adds up so I think after I finish doors, and maybe floor if i can't help myself, I expect a noticeable difference then.

Floor and totally blanketing rear wheel arches helped a lot

 

[atlcivic]

I was driving and talking to someone on Bluetooth the other day when it started raining. Holy moly, it sounded like I was standing under a thin tin roof with all the pops. As if there was zero material between me and the thin roof of the car. The person on the phone asked if I was getting shot at or if it was hailing haha. Never experienced this before with any other car I’ve owned

 

[jtlctr]

The person on the phone asked if I was getting shot at.

If you’re in America, it’s possible that you were being shot at.

 

[jtlctr]

I recently installed about 1.5 square feet (a little over 1 pound per door) of Second Skin Damplifier Pro on all 4 inner door skins, along with lining each door card with Thinsulate SM400L sound absorber (probably less than 1/2 pound per door). It has made a noticeable difference in audio quality, and cut down road noise a little.
The doors feel so much more solid now when closing!
When I have time, I will be treating the rear hatch area, which will hopefully turn down some more road noise.

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