I was tucking a +40 20x10" with my Tein Coilovers. Those with a 275/30 and rolled fenders was really pushing it, maybe a +38 10" would clear with the same tire.

 

and right there lies the math that i dread. if you qwere tucking a 10" on a +40 then in theory a 9.5' on a +30 is .5"narrower with 10mm or 3/8" less BS, so if im right a +30 9.5 will be about 1/8" further out than your 10" wheel.

Argh i hate this, i am seriously disputing just gettin em and if they dont work sellin em to a z owner.

My other issue is that i am not concerned with tucking. i am only running H techs so its no tthe car is much lower.

 

You will have to dial in some serious negative camber with h-techs to even try to fit 9.5's with 30 offset.

I barely clear my fender, rolled.

The wheels are very nice, but it isnt worth it.

 

Math is hard. This is easy:
http://marksink.com/tire_wheel_offset/offset.html

 

haha it's alll good, i like it to =)...

but yea, just those wheels on a g35 sedan doesn't seem to flow to well... just my opinion....