Superdave77964

Anyone here owned both? Stock to stock, which is more quiet indide while driving?

88redconvert

C6, no question about it.

jrose7004

I've had 2 C5's and 2 C6's and the C6 is definitely quieter.

ROJ#79

I didn't see much difference in my C-5 or C-6!

steig

C6 is quieter

GrandSportRob

I had a 99 C5 and now have a 13GS. I think the tires make a big impact on the noise. Run flats were loud in both models.

88redconvert

I had a 1999 and now have a 2012. Had the same michelin tires on both. The 2012 is definitely quieter.

TLS_Addict

Probably too window indexing. C5s have been known to have the windows pull out at high speeds. Same with F-Bodies.

cmonkey713

Had both, C-6 is quieter.

cv67

C6 for sure.

L82Ray

What you have here is a first world problem, the amount of noise I hear in my 12' is almost nothing, but I'm comparing it to a C3. Its really all relative, the C6 is an engineering marvel.

92mr2turbo

I added front/rear sound insulation in my old C5 FRC and the C6 GS is still quieter.

LDB

I had both and agree with the others that C6 is quieter, but I think the difference is slight. Tire condition is by far a bigger factor. A C5 with low mileage tires is clearly much quieter than a C6 with aged tires. So for example, if you were to compare a C6 with 12,000 mile tires to a C5 with 1200 mile tires, you would conclude that the C5 is way, way quieter. I’m just guessing here, but I’d guess the tire mileage offset is about 4 or 5 thousand miles. So for example, a C6 with 10,000 mile tires would be equal noise to a C5 with 5-6000 mile tires. On both cars, I usually bought tires with 3 or 4 mm of tread left rather than the minimum 2 mm, simply because the tire noise had gotten so obnoxious that I couldn’t stand it anymore.

BLUDICE

I had a '03 - now a '08 - don't really notice a noise difference - but I'm nearly deaf sooooo - I can tell for sure that the C6 is a far better car.

Spaceme1117

Had a 2002 Z06 then traded it for a 2011 Grand Sport. The C5 was definitely louder.

449er

I can't help with the C5 vs C6 as I have not owned a C5, but I currently own a C6 vert & it is definitely quieter than the C6 coupe that I had