C5 Noise Reduction

[peterd]

Recently gutted the factory Bose equipment in my C5 and replaced it with a high end Pioneer deck and some great MB Quart components in front (Dynamat in doors) and 6.5's in the back. Sounds great except for that nasty road noise in the back compartment and also what sounds like air noise fron the rear hatch glass.

Found a great thread here about using Frost King Duct insulation for under the carpet which I plan to do but is there anyone who has any ideas on air noise reduction around the glass hatch ????

Thanks,
Pete

 

[DRTH VTR]

I did the Frost King mod. I suggest that you do that first and see what you think. It seems to me that the great bulk of the noise comes through the bulkhead behind the seats. I have a Z06 and I also added a partition behind the seats. Of course, that is not an option with a coupe.

 

[TheSearcher]

I had a complete set of KoolMats (front set and rear set) installed in my 2004 Vette. I got a good buy on the two sets at about $1,200.00 total an then I paid about $800.00 to have my Corvette specialist at my Chevy dealer install them. The only extra thing needed was that I had to do some customizing of the rear compartment covers and their latching mechanisms as the Kool Mats do add some bulk.

Oh, by the way I have GHL Bullseye catbacks, but most of the noise I was suffering was simply Goodyear run flats on pavement noise, especially on concrete interstates.

The noise reduction with the KoolMats is dramatic! Now I can talk on the cell phone, have a conversation with a passenger or actually hear the great Bose stereo at low volumes. Its not exactly as quiet as my 2007 Caddilac Platinum DTS, but its close!

You cannot spend $2,000 on a C5 more wisely.

 

[DRTH VTR]

The KoolMats sound great. For the budget minded, the Frost King method will cost less than $200 and a weekend.

 

[napacruzerC5]

Hopefully you have already ditched the Goodyear runflats. That made a big difference to me for noise reduction. BTW other brand runflats may be quieter.

 

[peterd]

Hopefully you have already ditched the Goodyear runflats. That made a big difference to me for noise reduction. BTW other brand runflats may be quieter.

Actually I bought the car with a brand nre set of Goodyear runflats on it. I"ve heard that from many people (switching the tires ) but since they were new I thought I'd run them out - thinking twice about that latley.

 

[schmaltzr]

What is the Frost King solution. I went to the web, and their website is lame. I thought I would see a roll of insulation that you can buy, but they didn't have pictures or even decent descriptions. Please clue me in. Thanks - Ron

 

[DRTH VTR]

Here are a couple of links to look at.

http://www.corvetteactioncenter.com/forums/showthread.php?t=94676

Look at a link to Mike Mercury's site within this thread:

http://www.corvetteactioncenter.com/forums/showthread.php?t=65740

I did this mod myself and I am pretty happy with it.

 

[schmaltzr]

Thanks. That helped a lot.

 

[handstjg]

Exotic Vette has a precut kit for $220 plus $15 shipping. Is this the same material as Frost King?

Anyone try this method and how much time does it cut off the installation?

Secondly how does it compare to dynamat for performance?

hands

 

[Eric]

Hopefully you have already ditched the Goodyear runflats. That made a big difference to me for noise reduction. BTW other brand runflats may be quieter.

I did the same, made a HUGE difference in road noise. In fact, I don't really notice it much now when I have the radio on.

- Eric

 

[Mike Mercury]

Exotic Vette has a precut kit for $220 plus $15 shipping. Is this the same material as Frost King?

they are similar, but I believe the precut kit material has foil on both sides. You use a can of spray adhesive to install it. I've heard everything good about this setup.

Frost King has adhesive already on the foam side.

Secondly how does it compare to dynamat for performance?

hands

Dynamat would be better; it's more dense. But that comes with a penalty of added weight and expense. If weight and expense are not an important factor, then I'd use a Dynamat -type- product.

 

[handstjg]

Thanks, I decided to take the short cut and order the pre cut. It arrived in just 2 days and the instructions look very detailed.

Let's hope so, can't wait to get the seats back in and start driving it again.
Then it will be time for some good old cheers...

thanks again,
hands

 

[BanditDude]

You'll love it. It was actually much easier than I expected. It did seem a bit odd, however, when I looked at my "new" car with the interrior removed. :L

 

[Vettesmith]

The KoolMats sound great. For the budget minded, the Frost King method will cost less than $200 and a weekend.

Is there a book, DVD, etc about how to remove the interior trim pieces so as not to destroy them?

 

[Vettesmith]

C-5 road noise

Does anyone know of a manual, DVD, etc on how to remove interior trim pieces so as to not destroy them?

 

[handstjg]

Not to my knowledge but the kit did come with instructions. Just take your time and keep everything organized. I use zip lock plastic baggies ot keep bolts and fasteners separate.