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Old 06-26-2000, 12:14 AM   #1
P.K. Motorsports
Scooby Specialist
 
Member#: 1110
Join Date: Mar 2000
Location: USA
Vehicle:
1999 RS
Silver

Post Sound deadening material installed as per AZScooby...

This weekend I installed the sound deadening material following Peat's instructions. I bought the same stuff and took the installation one step, removing all the seats, the center housing, all the carpeting, the door sills, and the rear side trim panels all at once. Sheets were applied to the entire floorpan (including under the rear seats and on the driveshaft tunnel), inside the doors, and a considerable amount on the insides of the rear quarter panels and fenders. I did not do any soundproofing inside the trunk, under the dash, or in the roof.

Report: I noticed a difference in the transmission of road noise, but the change was not dramatic. It is more the type of change after which you can use one lower setting on your CDs. Unfortunately I did not have a decibel meter for this endeavour. The major things I have which increase cabin noise are solid swaybar links front and back, bald Pirelli P7000 SS, an ALK, and a Stromung single tip.

I suppose every little bit counts, but after applying 9.5 sheets I wish the difference was a little more marked. Insulating the trunk might make a big difference as far as exhaust noise goes, but that will have to wait for more sheets and another free weekend. This modification, and in fact further insulation in the areas I did not touch, is desirable for anybody who has "noisy" mods, but cannot be considered a large bang-for-buck item.
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Old 06-26-2000, 07:08 AM   #2
Peaty
Techno Sapien
Moderator
 
Member#: 449
Join Date: Oct 1999
Chapter/Region: MWSOC
Location: Lawrence, KS
Vehicle:
2010 Legacy 3.6R Lim
Azurite Blue Pearl

Smile

Although I'd love to take the credit, those were Aarons directions

Peaty
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Old 06-26-2000, 09:06 AM   #3
AaronB
Worst Mod Ever
Moderator
 
Member#: 369
Join Date: Oct 1999
Chapter/Region: SWIC
Location: Phoenix, AZ
Vehicle:
12 Vagon

Post

Well I hope the instructions helped you a bit.

The biggest improvement for me was the doors, since they made my speakers sound MUCH better. The floorpan removed some noise, but the RS is a noisy car. if you do the spare tire area in the trunk the exhaust note will be reduced.

I would argue that is a pretty good bang for buck item, in that it only would be around $100, but that is only my opinion. It is fairly cheap but time consuming.

Aaron http://www.azscooby.freeservers.com
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Old 06-26-2000, 09:17 AM   #4
BryanH
Scooby Guru
 
Member#: 993
Join Date: Feb 2000
Chapter/Region: MAIC
Location: nova
Post

When I installed dynamat, or whatever, before I always got the biggest difference from the:

1. Doors
2. Firewall
3. Trunk floor and quarter panels
4. rest of passenger floor
5. ceiling

This was listed in order.

I also found very little difference between brands. Just make sure to prep the surface properly.

Cheap and ,yes, very time consuming.
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