Ended up going with TE37SB 18x8 +30. It should sit close to flush, with just the right amount of tire bulge.
Ordered on 3/13, and the latest update ETA around Nov/Dec…….
Originally I was leaning toward the ZE40X 18x8 +20 Nov. production date, but I decided to stick with the TEs.
View attachment 20168
Here's my Black Shadow te37xt. I really wanted the SBs like you ordered but I didn't like the different shade on the lip. those 18's will look great on your GX