I just checked on the Varis site:
VARIS Z34 FAIRLADY Z ARISING - II
There are 2 part #'s for front bumpers and 2 part #'s for fenders (listed as "6 pcs"), but there's no price difference between either #.
I have yet to see any differences, so if there is any distinction i'd love to actually see it
RANDOM:
I'm already committed to a '12 Nismo wing + carbon signal add on, but one thing I didn't like about the Varis Hyper Narrow GT wing was . . . how narrow it was. Seems way too small, particularly for an aggressive kit like Varis. The Hyper Narrow GT for the GTR Arising is a couple inches wider . . . i WONDER if the Z34 base could be used to mount the GTR blade