It's not aggressive at all, certain people throwing term around way too loosely.
Folks run 19x9.5 +22 te37 sizing all the time with mild suspension setups (stock or shock/spring)
More proof:
OEM Nismo is 19x9.5 +40 front
A 19x9 +26 only extends 8mm out more. Thats . . . nothing.
If you have SPL front upper control arms your fitment options are basically limited only to the skill of your alignment guy.
i have 20x11 +15 in front with a 275/30, on OEM metal. I don't really wanna here anyone talk about how 19x9 +26 is aggressive. Its not even a finger's width past stock.
Everyone with a wheel question should read THIS POST:
[Official] 370z wheel fitment guide (pics/specs) only
It's from the Wheel Fitment Guide thread
19x9.5 +22; 19x10.5 +12
265/35/19; 305/30/19
KW v3, height set with fender clearly above top of tire (about 1 finger gap)
I do not consider that aggressive. To me, thats "normal" - perfectly fine for all forms of driving and better than stock
Near stock would be considered "stupid"
my setup would be "aggressive"
widebody + bags would be "super aggressive"
And there's gradations between