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post #1 of 16 Old 05-02-2010, 01:27 PM Thread Starter
SteveL

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Dynamat install

I want to reduce the road noise in my 8th generation EX-L w/nav. I've read a number of posts on Dynamat and, based on what I've read it does seem to help. The problem is, I do not have the time (or the desire) to install it myself. Does anyone know of any Dynamat professional installers in the Chicago area?


2009 Accord sedan EX-L w/nav.
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post #2 of 16 Old 05-02-2010, 02:14 PM
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Moved to Audio and Electronics.

You can also contact Dynamat and see if they could recommend somebody, your local autosoudn stores will be your next best bet.


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post #3 of 16 Old 05-02-2010, 03:38 PM
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I paid around $500 to have it installed. It's a PITA, everything needs to come out took my shop about a week to get everything done (they had other customers to deal with too).

It made a noticeable improvement, but would I do it again? Probably not, I still have a lot of rattles. I'd rather spend the $1K and do something else.

'06 Honda Accord LX Coupe

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post #4 of 16 Old 05-02-2010, 03:41 PM
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While not as good as dynmat, I noticed that when I switched to the heavier winter / all weather rubber mats that road noise went down some. Did not do scientific tests, but it makes sense that it will help.

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post #5 of 16 Old 05-02-2010, 04:09 PM
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I did my entire trunk, rear deck and front doors of my coupe. It made a big difference in terms of Audio, but I still have road noise. The front doors did help cut down some noise, but I still have rattles. In the end, we still drive Hondas and, well, they rattle, haha.

Like others have said, it was a PITA to instal and took me the better part of a weekend.

SB

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post #6 of 16 Old 05-02-2010, 04:22 PM
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I used accumat basically the same product just the scosche version. Dblock is correct it is a PITA but after three boxes on the floor and as high on the fire wall as i could get it there is a huge difference getting ready to do the rear deck and doors hoping to keep as much road noise out as i can

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post #7 of 16 Old 05-02-2010, 04:40 PM
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Dynamat isn't going to cut down on a lot of the road noise. If you do it throughout your car, yes it will help a little bit, but it should be used to add mass in order to dampen vibrations and such. It is used to control resonance, which is an important step when doing a nice audio install. But if you really want to keep road noise out, you need to use a loaded barrier like or closed cell foam to kill higher frequencies and any more rattles.

OP, I know you said you don't have the time or motivation. A professional shop is going to really get you for labor, probably at least doubling the cost of the product alone depending on what you buy and how much coverage you want. But it really isn't hard to install. You can focus on doing certain areas at a time. So I would recommend doing it yourself. I haven't done my accord yet, but I did a decent deadening job on my last car and it really wasn't bad at all. Hardest part is taking the various pieces off your car to get where you want. I personally wouldn't trust/pay a shop to do it right.

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post #8 of 16 Old 05-02-2010, 05:11 PM
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^^^ What he said. And that doesn't even factor in the jacked prices of the good Dynamat (Extreme).

2010 EX Sedan 5MT (CBP)
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post #9 of 16 Old 05-02-2010, 05:56 PM
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+1 on doing it yourself. they will rape you on cost and labor. Its not fun, but just make a weekend out of it. You and your car will bond.
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post #10 of 16 Old 05-02-2010, 06:59 PM
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Swapping out the OEM Michelins made a big difference in tire and road noise for me. Those stock tires are noisy.

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post #11 of 16 Old 05-03-2010, 06:04 AM
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I had mine installed when I did my audio. It was easier since everything was already taken apart. There are also cheaper alternatives like RAAMAT & Second Skin if Dynamat is out of your budget.

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post #12 of 16 Old 05-03-2010, 08:48 AM
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I did my '09 6/6 Coupe about a month ago. It made a difference; there's still road noise but it is attenuated to a noticeable degree. I will be glad to finally wear out the OEM Michelins and get quieter tars (NASCAR speak for "tires"). I read all the info I could find on materials, methods etc. and based my decision to used closed-cell foam after reading a report on on of the listers on this forum and partly by pulling the cover out of protective ear muffs. Guess what's inside: closed cell foam. I glued 3/8" foam over every surface I could inside doors, rear side panels and trunk sides, and doubled it to 3/4" where there was room. I also bought a gallon of Quiet Car and brushed two coats on the underside of car on the flat area beneath the seats. I spooged the stuff inside the trunk in the spare tire well area too.

It's definitely a job. You'll need the kit of plastic wedge tools to pry off the panels. The only weirdness was getting the sacrificial pin out of the panel over the rear window. The book says you hit the panel with a rubber mallet and it breaks off metal tabs so it can be pulled out. I whacked the bejezus out of it, afraid I was going to damage the plastic but still had to use a 16" screwdriver to reach back in and pry it out. Nothing was broken off the pins except the plastic ring I worried out with the screwdriver.
Good luck.
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post #13 of 16 Old 05-04-2010, 03:15 PM
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One thing to consider with a project like this is the quality of shop you're taking it to if you decide to go that route. With the amount of things that can be broken, scratched, damaged, etc., you'd serve yourself better not to have this done by your typical chicken shit audio shops which butcher interiors. That being said a higher-end shop is going to charge you a buttload for the install since it takes so long to do.

Honestly I'd never trust someone to do this type of work for a couple reasons:

1) I wouldn't trust someone to safely/carefully take apart my interior.

2) My attention to detail>theirs.

3) My labor rate is only the time invested.

4) When all is said and done, did they realllly use the Dynamat Extreme you paid out the ass for or did they use a cheaper (althought just as effective) knock-off and still charge the premium? Believe it or not it happens.

Food for thought. In honesty I suggest the DIY method for sure.

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post #14 of 16 Old 05-04-2010, 03:22 PM
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Best buy

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post #15 of 16 Old 05-04-2010, 07:37 PM
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Quote:
Originally Posted by kdogra2010 View Post
Best buy


See the post right above yours.


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