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Old Jul 8, 2020 | 04:22 PM
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Default Interior noise

I just purchased a 2012 Grand Sport with the original run flats (only 14000 miles on the car) . The road noise was quite loud. Could this be caused by the run flats? They are nearing the end of their life. Any recommendations for replacements?
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Old Jul 8, 2020 | 05:31 PM
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Tires are 8 years old and end of life for sure.
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Old Jul 8, 2020 | 05:57 PM
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I had Michelin non runflats and still had a lot of tire noise at highway speeds. Guess it comes with that wide of a tire.
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Old Jul 8, 2020 | 06:36 PM
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My 11 GS had Goodyear F1 Eagle Run Flats when I got it. When the time came I went with Michelin Pilot Sport AS/3+ Non-Run Flats.

Way less noise, but still road noise. Not bad, but next step will be to install sound deadner since it's my DD.

From my understanding, RFs are harder material, where non-RFs are obviously softer materials and a little quieter.

I'm happier with non-RFs, a TackLife Pump
Amazon Amazon
Safety Seal Plug Kit - https://safetyseal.com/
and NOCO Battery Jump Pack -
Amazon Amazon

It all fits in the back of one of the rear lidded compartments

Last edited by FLC6GS; Jul 8, 2020 at 06:40 PM.
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Old Jul 8, 2020 | 07:27 PM
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When I drove next to a friends GS that had 8 year old runflats on it I couldn’t believe the amount of noise that came from them.
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Old Jul 8, 2020 | 08:42 PM
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Run flats are noisier than non run-flats, that is just a fact. Once an RF get to half tread wear, the noise will be noticeably louder.
They will become downright annoying at 3/32" of tread remaining and need replacing regardless.
Even Non Run-Flats will get a bit louder at 4/32", and will need replacing shortly after that wear.

Most C6 Corvette tires start at 10/32" tread, so that is the reason that they don't last very long if the car is driven often.

I changed out my original OEM GY RF's when they were at 5/32" due to excessive road noise, dangerous on wet roads, and tracking on any pavement grooves.
I have used Non RF's since that time. I now have over 110,000 miles and had 4 sets of Firestone Indy 500's (old tread style) and my current
Michelin PS 4S non run flats. All those tires were great on wet roads, great road trip tire for comfort and limited road noise. I replace all my tires at 4/32" as they
are just about to get loud, and due to long road trips, I need and want good wet road traction. I've yet to take a week Or longer road trip without driving in rain.

I'm sure the newer RF's are much better than the OEM Goodyear tires, but I just wasn't going to take that chance after running non runflats.

Last edited by 4SUMERZ; Jul 8, 2020 at 08:47 PM.
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