I did a search, but could not find an answer.

What problems would there be if I run a 18x9 +23 all around? I remember reading something about understeer/traction problems, something along those lines, but I want to be sure before I make a purchase if there will be major cons about it. Thanks in advance.

 

i think the problem will be wiz the front wheels ,maybe theyll hit the brake calipers.
ull have to use wheel spacers
i would stick to what is recommended :
8.5 front
9.5 rear

 

that's not that aggresive of an off set...I would think you'd be fine

 

offset and wheel width are 2 different things...

 

I'm running 18x9 +25 all around, with 265/40R18 tires all around, and have no issues whatsoever. 2mm more isn't going to cause any issues, I have plenty of clearance.

I ran this setup on our local racetrack a few weeks ago and it performed brilliantly. I also have Hotchkiss sways, and this combination cured the Z's stock understeer.

Go for it!

-E