For those comtemplating the '02+ rear valance mod, the parts #'s are:
Skirt, RR 71511-SLO-000ZZ
Stay, RR 71555-SLO-010
Get them from Niello Acura 916-334-6300
Valance is around $520 with 30% NSXCA discount, stay <$20.
I have bunch of pics on here if you search - also see avatar to the left. (Also looks just like Fury's pic of Enzo's with different wheels)
I have to say that most of the WW spat installs have very poor fit - it is difficult to get it aligned for both side & rear perspective, as Rudeboy acknowledges; DocL's looks better than most but we're only seeing it from one view, the rear (no disrespect). Most you see will have the side aligned well, but from the rear it has to be at an angle, which just spoils the appearance. I've reported elsewhere about WW fit issues including those of the skirts but the product is good value forthe money - just wish they would take it a little further to make it even better.
Again, as mentioned elsewhere, '02+ will not work with a dual tip exhaust however.
I do think its a good idea to differentiate the grille colour - on my red (the valance is all red, unlike Fury's OEM colour scheme) the grille is black & so are the WW skirts grilles, as well as matching home-made Zanardi style mesh side-scoop griles. On a black car, I think the contrasting grilles in silver would look excellent!