I just got this thing and decided I'd try and see if I could make the annoying noises a bit quieter; eg Road and Traffic Noise. So what I did today was to install some 80 mil Noico Sound Deadening in the Doors.

This worked out quite well. It provided a substantial subjective improvement.

For those who might have an interest in doing the same, I made a set of templates, and cut the Sound Deadening Material to match the templates. The picture below and the pdf file attached are diagrams of the templates I made and thus the Sound Deadening I installed.
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And here I was thinking about removing factory sound deadening 🤪

 

There’s not hardly any in the door. One strip about 3” by 18”

By specing the lightweight glass I’m still way ahead of the game.

 

This is brilliant- thanks. My car hasn’t even landed and I am thinking of doing this - and the rear wheel wells. Will likely do on my Touring to improve the Bose sound system.

 

Great idea. Where can you find the steps to remove the panels?

 

This is a pretty good video. Although you do NOT need to remove all three screws from the back of the Door Panel. In fact it's probably better if you only remove the one that holds the bracket to the Door. Leave the Bracket attached to the Door Card.
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Does anyone have a similar template for a 991. Thanks

 

Excellent templet! Thank you!

 

Very cool. Do you find this helps primarily with wind noise? Or tire noise as well? Overall I'm happy with the cabin volume except tire roar on certain highway pavement.

 

No impact on Wind Noise, A very small reduction in tire noise, Excellent effect on reducing the noise from passing or being passed cars and trucks.

My next noise reduction project is to place sound deadening material on the wheel well arches. The wheel wells are now where almost 100% of the road noise is coming from.
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Makes sense. Let us know how that goes, very curious.

 

+ 1

 

Just to follow up on this, I came up with an alternative method that I thought I'd share - it's best if you're doing 2 layers of something like CLD + a absorbing layer. When I did the first side of the car, I just cut templates out of the paper that comes with the CLD. It isn't difficult but it eats up time. I saved at least an hour or two by doing the other side with transfer paper and made MUCH better templates.

1) Use clear transfer tape and apply a layer to the surface you're going to sound deaden.
2) Take a sharpie and trace out the outline
3) Peel that transfer paper off and put it on your CLD.
4) Cut out your CLD with the transfer paper on it.
5) Peel off the transfer paper template and apply this to your second layer (I used Resonix fiber mat).
6) Cut out your sound absorber / fiber mat using the transfer paper template.
7) Stick on CLD
8) Stick on fiber mat / second layer

IMO the best part of this is that you can stick the transfer paper down into crevices and, since it's transparent, you can see underneath. So if there's a door hangar clip / wire bundle / etc that you're trying to avoid, you can go right up to the edge of it. I'll post a pic if it's unclear or anyone wants more info.

 

Pictures for those interested

 

Here are the 4 pieces that you get when you buy pre-cut set from 12V Nick. Since this pic I updated my door cards 3 times and he always helps me getting replacement pieces.


here a pic with # 1 removed during door upgrade - luckily its not that hard to remove as I feared it would be. So, no worries adding insulation and not sure if you need to remove it again for some reason.