20x11 +20
20x9 +25
I've put 20mm spacers on my stock 19's and there is plenty of clearance, no rubbing issues, and it looks like it could go another 5mm max.
But I'm still looking for a nice lightweight set of 19's
(19x9.5 & 19x11)
The angles for this wheel might be to sharp for the 370z's lines, I think it would look better if the spokes were slightly rounded.
Just my opinion.