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Will 18" wheels front and back throw code?

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Old 07-20-2018, 12:29 PM
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castlerock_z06
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Default Will 18" wheels front and back throw code?

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Have c6 GS ~700rwhp, want to run a second set of wheels/tires on the street of r compound so I can get a little bit of traction, considering ether Rival S or R888R. I know the back comes 335/30-18 but what size from can I use without throwing codes?
Old 07-20-2018, 10:23 PM
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cpt11gs
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Originally Posted by castlerock_z06
Searched and didn't see an answer.

Have c6 GS ~700rwhp, want to run a second set of wheels/tires on the street of r compound so I can get a little bit of traction, considering ether Rival S or R888R. I know the back comes 335/30-18 but what size from can I use without throwing codes?
I run 335/30-18 Rivals on the back of my C6 Grand Sport, and 275/35-18’s in front. 315/30-18’s will work in front also. No issue with codes at all on the street or at the Autocross.
Old 07-21-2018, 11:05 AM
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castlerock_z06
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Originally Posted by cpt11gs


I run 335/30-18 Rivals on the back of my C6 Grand Sport, and 275/35-18’s in front. 315/30-18’s will work in front also. No issue with codes at all on the street or at the Autocross.
Thank you

Old 09-20-2018, 09:09 PM
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CamarosRus
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Are there any known written FACTS for what percentage difference in Tire Diameter is allowed form Front to Rear regardless of wheel dia

Im wanting to run 19x19 sq wheels on 2012 Grand Sport using 285/30/19 tires front an 345/30/19 rear (maybe)

Is there a %%% WINDOW that you need to stay inside

Thanks

Chuck Sharin

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