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      06-15-2012, 09:19 PM   #57
Pontiac G8GT
Rawyzf's Avatar

Drives: 09 Pontiac G8 GT
Join Date: Mar 2010
Location: Blaine, MN

iTrader: (2)

Originally Posted by paintpro21 View Post
If the G8 is very similar to the GTO then most have picked 18x8.5" ET35 and 18x9" ET42. But you may be able to get away with the more aggressive rear. I am not very familiar with your Pontiac fitment though.
G8 and GTO are similar somewhat, but the G8 has a lot more room in the rear.

For Example, I can (and currently do) run VMR 18x9.5 +45 and don't rub with a 275/40. I changed to a 285/40, and had to roll slightly to avoid the rub. There is still plenty of room on the interior side though.

I was very interested in that 18x9.5 +58, but I want concavity in the rear. With those only being profile 1, I don't think I'll like the look. Plus, I'd have to run 18x8.5 +45 Profile 1 with that +58 to have the same outer position. Anything else (like the preferred 18x8.5 +35) would stick out further in front than the rear, and that'd look silly in my opinion.

So, I am going to go with the 18x9.5 +43 in the rear which is Profile 2. And I can run a 275/40 or 285/40. Both will fit since I rolled, but even an unrolled g8 should fit the 275/40 with that wheel in the rear.

As for the front, not sure if I want to go with the 18x8.5 +35 or 18x9 +42. I think a 255 tire would fit better on the 18x9 rather than 18x8.5. (I currently have 255/40/18 on 18x8.5 +35 VMRs up front).

18x9.5 +43 square has cossed my mind many times too, lol. Like I said, I have to really think this over.

Any questions on the G8, just let me know. I've gone through many sets of wheels and tested a lot of fitments out.