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Discussion Starter #1
Wanting to get some ATS wheels... They have 18 x 9's on the back and 18x8's up front I believe.... Its hard to find anybody selling more then one on eBay... Came across 4 (4706) which are the rears...this shouldn't matter on a 05 CTS should it?? Would i mount 245/40/ 18s?? Never bought wheels so any help would be appreciated
 

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95 Posts
Discussion Starter #3
I'm sorry if I'm not getting it... Based on this tire calculator it says I should go with 40 18?? Because the diameter of the 45 is greater then 3 % ? I'd like my speedo to be accurate as possible... (Can't post my screen cap but its the same as the pic in the link u posted)

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Why would you go with the 45 over the 40?? Thanks again for ur help!
 
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