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CTS V Coupe
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Hey Guys!

I'm new to this forum but have spent years pouring over other forms (especially AMC's) and have learned that basic information often becomes "Tribal Knowledge" and it's source becomes buried in descriptions in what other tribe members have done before me.

I just acquired a '12 coupe with a few Lingenfelter mods attached and am planning to get new wheels and tires when these tires are gone (i.e. soon) . I know the wheel sizes (fr:19x9, r: 19x10) and the bolt pattern (5x120). However the stock offset eludes me. I suspect from what what I read on the forum it is different from the sedan/wagon but I can't seem to find anything that gives me the exact answer.

Also, the wheels I'm currently interested in come in a 9" for the front but a 10.5" for the rear. How significant is that 1/2 inch for fitment and tire size?

I appreciate any help sent my way.
 

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'04V, '05V, '06SRT8, '10V, '13ZL1, '12 V, '16 Z06 SC757
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6,440 Posts
Here are the offsets for coupe rears in 19/20" sizes:

10" wide - +20 to +40
10.5" wide - +26 to +46
11" wide - +33 to +53
11.5" wide - +39 to +51
12.0" wide - +45 (That's really it. You can't go further inboard (physically) and if you go outboard they'll poke more than most front setups)

I went with TSW Nurburgrings:

Front - 19x9.5", 41 offset
Rear - 19x10.5", 27 offset

I currently run Michelin Pilot SuperSports 255/40 F and 295/35 R. I want to take the fronts up to 275/35 for shiz and giggles.

 
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