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Old 06-11-2001, 11:51 PM   #1
gavin
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Member#: 3198
Join Date: Dec 2000
Location: Portland, OR USA
Vehicle:
2005 GT LTD Wagon
Garnet Red

Post LTD sound insulation

I know there is hardly any dampening material in the RS, does anyone know how much dampening material there is on the floor of the MY97 Legacy interior?

My only real complaint with my car is the highway noise. I've dynamatted the cargo floor, which helped some, and I'm debating about pulling out the seats and going to town on the interior floor.

Anyone done this? How big a pain was it to get the carpet up?
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Old 06-12-2001, 07:27 AM   #2
MY99 2.5GT
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Member#: 5030
Join Date: Mar 2001
Chapter/Region: MAIC
Location: Martinsburg, WV, USA
Vehicle:
1999 Legacy 2.5GT
05 Legacy GT 06 Armada

Post

I'm interested in finding out about this as well. My tires are noisy to begin with so a different set will cure that. But I would actually like to be able to roll up the windows and barely hear the exhaust also. Not that I don't like the sound of my exhaust but it gets annoying when your on the highway for more than an hour.

What can I do to help this?

Brad
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Old 06-13-2001, 10:31 AM   #3
CRAZY KEN
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Member#: 1176
Join Date: Mar 2000
Chapter/Region: MAIC
Location: Potomac, MD
Vehicle:
2012 Legacy GT Ltd
Pearl Statin White

Post

I have only used Extreme Dynamat in the tunk and wing and still get vibration from the center LED of the wing...any suggestions??? As for interior noise...I keep my windows down and sound pumping all 700+ watts baby!!! So I don't hear jack while driving, but at a light I hear my GD LED rattle just a bit that ticks me off!


CRAZY KEN
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Old 06-13-2001, 11:01 AM   #4
gavin
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Member#: 3198
Join Date: Dec 2000
Location: Portland, OR USA
Vehicle:
2005 GT LTD Wagon
Garnet Red

Post

You should be able to make a foam sleeve for the light housing which would eliminate the vibration.
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Old 06-13-2001, 11:58 AM   #5
2.5GT
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Member#: 2697
Join Date: Oct 2000
Location: Olney, MD. Work in McLean, VA
Vehicle:
2000 Celica GT-S
Spectra Blue

Post

Ah, the infamous wing rattling. I had a helluva time with that one when I had my sub. After carefully dynamatting the whole led, just to see if it would stop the rattle, I finally came to the conclusion that the insessant rattling was from the two walls of the hollow wing flexing. Try taking out the light completely and playing the stereo. Is the rattling still present? If it is, the only thing I could suggest is using some type of expandable foam and fill the inside of the wing. Just be careful that you don't overfill as it might damage/deform the wing.

Jason
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Old 06-13-2001, 11:25 PM   #6
silverSurfer
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Member#: 1361
Join Date: Apr 2000
Chapter/Region: Tri-State
Location: Used to be Long Island/NYC...
Vehicle:
1999 Legacy GT Ltd.
2006 Rav4 Sport Silvarrr

Post

when i had two 10" subs in my GT most of the noise came from the License plate rattling and the wing LEDs. I dynomatted my plate and dynomatted the LEDs. I cut a long slimpiece of dynomat and covered the top of the LEDs. That cured like 90% of the majorly annoying rattling. The rest a little dynomat spray couldn't cure.


-chrisC

Edit: oh BTW: i dunno about the regular GT's. My GT Ltd has pieces of dynomatt like stuff already in the trunk well. I Striped the trunk for an auto-x and noticed that pieces were already stuck in a whole bunch of places.

[ June 13, 2001: Message edited by: silverSurfer ]
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Old 06-14-2001, 12:11 AM   #7
snowone
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Member#: 6035
Join Date: Apr 2001
Chapter/Region: NWIC
Location: PNW!
Vehicle:
05 92-X Saabaru
GF8 05/06 STi

Post

I've dynamated the LED in my GT's wing, and it still rattles like mad. I too think it's the wing itself flexing... if I put upward pressure on the bottome center portion of the wing... the rattle is eliminated. Pretty sure it's not the LED. Next is the dynamat extreeme trunk kit. I've read that expanding foam shot into the wing is a BAD thing?

Bottom line: If it sounds great inside, that's all that matters.

I have noticed my rear deck material making noise during heavy hitting bass... vibrating against the rear window. Gonna remove and insulate... anyone else run into that one?
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Old 06-14-2001, 06:22 AM   #8
froggert
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Member#: 768
Join Date: Jan 2000
Chapter/Region: Tri-State
Location: nj
Vehicle:
OB, legacy, 911,
ram 1500, 1098s, m620

Post

you don't need to use dynamat to get rid of rattling. it's more for vibration control. my license plate was rattling against the metal frame and the frame was rattling against the car. i shot a little bit of silicone caulk stuff and let it dry and no more rattles.

roger
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