C5 Road Noise
Melting Slicks
Joined: Apr 2002
Posts: 2,631
Likes: 2
From: Clever, MO aka SOMO
The original GY runflat tires are extremely noisy compared to a non runflat tire. I got rid of mine 6 months ago at 30K miles and the difference in the noise level was incredible. I bought Kumho ASX's. I love them for my long road trips.
Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
Originally Posted by Wicked Weasel
replace the run flats....
Burning Brakes
Joined: Jan 2003
Posts: 881
Likes: 0
From: Houston TX
St. Jude Donor '05, '14, '15
Le Mans Master
Joined: Apr 2001
Posts: 5,474
Likes: 717
From: Black Forest CO
Thanks for posting that. I couldn't find it to pass along to FOM24.
Originally Posted by kasper-pA-
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Drifting
Joined: May 2005
Posts: 1,590
Likes: 1
From: Littleton Colorado
Was my reaction to the road noise when I bought my C5. I bought some frost king and another sound insulation material and was trying to find time to do the install of it. But then I replaced the stock GoodYear EMTs with non-run flats and the difference was HUGE 
Now I'm thinking that the sound insulation material is not needed
Drifting
Joined: Jul 2001
Posts: 1,896
Likes: 3
From: New Bern NC
I know it is a sports car and all that, but it has too much road noise for a $50K vehicle. It would have only added a few pounds for GM to have put in some insulation a the factory. My Chevy truck has much less noise.
bub
8th Gear
Joined: May 2006
Posts: 8
Likes: 0
C5 road noise
After purchasing a used '04, I tried the tire swap to non run flats. A was a waste of $1100. Just finished insulating the rear compartment with Frost King and again, not an appreciable difference. Concrete highways make simple conversation with a passenger almost impossible. After 8 years driving an '84, I expected a better experience from a relatively new (22,000 miles) 2004 C5. My '84 vette is quieter at highway speeds. I have read the argument that this a sports car, but I would not purchase another C5.
Tech Contributor
Joined: Jan 2007
Posts: 19,425
Likes: 1,146
From: Dyer, IN
Instructor
Joined: Jan 2011
Posts: 124
Likes: 1
From: Waukesha WI
I have read good things about Frost King. I plan on applying it on every inch of floorboard, trunk area, wheelwells, and the vertical part behind the seats that I can. I also agree the run crap are annoying and loud after an 800 mile trip to bowling green. Hopefully a set of Hankook Ventus Evo tires will help quiet it down.
Safety Car
Joined: Mar 2007
Posts: 3,518
Likes: 37
I have read good things about Frost King. I plan on applying it on every inch of floorboard, trunk area, wheelwells, and the vertical part behind the seats that I can. I also agree the run crap are annoying and loud after an 800 mile trip to bowling green. Hopefully a set of Hankook Ventus Evo tires will help quiet it down.
Race Director
Joined: Jan 2007
Posts: 18,643
Likes: 14
From: Norman Oklahoma - The Only State in the Union with no Blue Counties!
Was my reaction to the road noise when I bought my C5. I bought some frost king and another sound insulation material and was trying to find time to do the install of it. But then I replaced the stock GoodYear EMTs with non-run flats and the difference was HUGE Now I'm thinking that the sound insulation material is not needed
I got rid of the runcraps,,,,never added any sound proofing weight,,,never regreted either decision!!!!!!
Melting Slicks
Joined: Mar 2008
Posts: 2,962
Likes: 254
From: Richmond, Ky
After purchasing a used '04, I tried the tire swap to non run flats. A was a waste of $1100. Just finished insulating the rear compartment with Frost King and again, not an appreciable difference. Concrete highways make simple conversation with a passenger almost impossible. After 8 years driving an '84, I expected a better experience from a relatively new (22,000 miles) 2004 C5. My '84 vette is quieter at highway speeds. I have read the argument that this a sports car, but I would not purchase another C5.
That must be one incredible 84 you have, because that's the first ever comment I've heard like that. I drove a 2 year old 84 way back when and I remember the experience well. It kept me from even looking at another Vette for years. Rattletrap is the expression that best describes my experience.
Instructor
Joined: Jan 2011
Posts: 124
Likes: 1
From: Waukesha WI
I was considering the Frost Shield for its thermal insulating capabilities as well as reducing road noise.
Last edited by VETTEGUY1977; Sep 26, 2011 at 10:10 PM.