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I know this question has been asked dozens of times, but I still can't seem to find the best solution.

I have a 2012 G37S sedan 6MT. I have been wanting new wheels since I bought it because I am really not thrilled with with the factory wheels. I also wanted to lower it a bit to give it a more aggressive stance. Now that the factory tires need replacing, it seems like a good time to make the move (the stock tires only lasted 12000 miles, though).

Having read through many posts here and elsewhere, the Eibach kit seems to be the best approach in lowering the car. TireRack has a kit with springs and anti-roll bars that looks pretty nice for under 600. I'm going to do some more shopping, though.

My question, however, has to do with the wheels. Again, from reading around, 19 inch wheels seems to be the best choice. I want lightweight, rigid wheels that don't cost a fortune. I also want to preserve the staggered setup the RWD has. After going to a ton of wheel manufacturing sites, Enkei seems to be the best choice. I've narrowed it down to their RSM9 or RP03, each coming in at around 20/22 pounds (front and rear) with widths of 8.5 inches for the front and either 9.5 or 10 inches in the rear.

I went to look on TireRack, and it seems that for my vehicle, the only set of staggered wheels they have available for my car are Advanti Wheels, weighing 25/28 pounds or OZ wheels which not only are as heavy, but are kind of ugly (no offense to anyone who owns them). They carry both the Enkei wheels I am looking at, but only in 8.5 inch width.

Since I have no idea what the proper offsets would be, I called TireRack to get some help from their service people, hoping that perhaps they could get the wheels I wanted even though it wasn't listed on their site. However, the person I spoke to said that if it wasn't on their site, then it probably wouldn't fit on the vehicle.

Is this true? According to Enkei's specs, the RP03's have offets of 22 or 42 mm for both the 8.5 inch wheel and the 9.5 inch. Only the 22 mm offset is available for the 10 inch wheel. The RSM9 are available with a 30 or 42 mm offest for the 8.5 inch wheel, and either 35 or 45 for the 9.5 inch wheel. The 10 inch wheel comes only with a 43 mm offset.

Would these sizes not fit the rear of my car? If so, does anyone have any suggestions for other lightweight, rigid, and relatively inexpensive wheels? The Enkei's were around $600 each. Also, advice regarding the proper offsets with the Eibach kit would be greatly appreciated. I don't track the car - it is my daily driver, but I do enjoy, let's say, "spirited" driving.

Thanks in advance!
 

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Look at sites other than tire rack and you'll find plenty of options, but probably not many that are both light and relatively inexpensive.

For offsets, you're going to probably be in the +30 to +39 mm range but when talking about fitment! the width also plays an important factor in what fits and what doesn't.

Here is a calculator you can use. Enter the stock rim measurements and the aftermarket rim measurements to compare them. http://www.rimsntires.com/specspro.jsp
 

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Now that the factory tires need replacing, it seems like a good time to make the move (the stock tires only lasted 12000 miles, though).
You're kidding right? I have an '11 S sedan and the OEM Bridgestones still had a few thousand left when I replaced them last January.
 

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I had about 7000 miles on the rear Conti 's and noticed wear variation so I did the L/R swap. I actually forgot about checking them and would have done a roate sooner but all in all, they are not disappointing me. I'm pretty easy on them but still drive fun/spirited.
Some drivers get to the extremes with longevity on tires and some tear them up in the short term. The variables are so numerous, I just take in the big picture and look at the xx million-mile samples and ratings by drivers all over the country and use Tirerack for that primarily. Aside from the survey data there, you can specify the vehicle to see what other owners are using and happy with and qualify that by areas of the country or winter conditions etc..... Tirerack stands apart from many other sites for that information alone.
 

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You're kidding right? I have an '11 S sedan and the OEM Bridgestones still had a few thousand left when I replaced them last January.
Yep - only 12,000. I don't put a lot of miles, but they are mostly highway and usually in the 70-80 mph range. It's the RWD, so I can only do a left/right rotation. Fronts are actually fine, but the backs have barely 1/8 inch left.
 

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I'd consider a tire that goes 12k miles a serious performance tire that belongs on a track unless I was ripping on them and I wouldn't replace them with the same tire.

I've always thought of tire prices by dividing it out by miles so you get an idea of how little the better premium rated tire is as cost per miles driven. It helps justify the $280 tires from the $179 knock-off's sometimes.

If I don't get closer to twice the 12 k miles out of my Conti's, I'll be disappointed. Yet that means my tire cost will be closer to half of those Bridgestones based on miles driven.
I'm sure I didn't quite spend $625 for 2 Conti's m/bal but if so, and last 22,000 miles, that comes to .0284 c per mile. For the B Stones to have the same use/cost, they'd be about $340 for the pair m/bal.
 

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Yep - only 12,000. I don't put a lot of miles, but they are mostly highway and usually in the 70-80 mph range. It's the RWD, so I can only do a left/right rotation. Fronts are actually fine, but the backs have barely 1/8 inch left.
I got just over 40K from mine. And they were never rotated. We'll see how the Hankooks do that I replaced them with. Mine is an S sedan so I also have the staggered tire size.
 
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