use this, it is great. Does anyone have the exact weight of the stock sport rims?

The sport package Rays weights per Injected Performance:

370Z Stock weights:
Sport 19×9.0: 23.20 lbs (10.52 kg)
Sport 19×10.0: 23.80 lbs (10.80 kg)

^^ The stock rear Rays actually have been measured to be 27 lbs per wheel. I don't think anyone corrected this info after the initial 23.8 data came out a long time ago. I wish others who have measured them can chime in. I've seen a few posts on here as well confirming that weight. The Nismo Rays are a few lbs lighter than the sport pkg Rays as well.

thanks, unfortunately there is no thread sticky listing wheel weights, offsets etc. and brake hardware specs.

I kept seeing the 23.8 lbs figure which never made any sense considering the rear wheel is 1" wider

btw did anyone try CCW. They make custom inexpensive forged wheels which the Corvette guys seem to like.