I have a black 95Z with borla exhaust (dual/dual intercooled tips) and an SS spoiler (98+). I have been contemplating getting a rear valance to finish up the rear. I dont plan on adding side skirts or anything, just the rear piece. This is what my car looks like:
http://www.bfranker.badz28.com/appea...SSspoiler1.jpg
So far Ive found this on ebay:
http://images.andale.com/f2/110/114/...825_X5630b.jpg
Its all ive found thats the rear piece only and compatible with dual exhaust(not SLP CME).

 

I was also thinking about that same piece as well...i don't have dual exhaust but....i still wanted to "finish" off my rear...you can check pics out in my sig...
i may not have a rear pic tho...i'll have to check...:P

 

That'll look goofy IMO without the complete kit. Can't do the back without the sides/front, can't do the front without the sides/back, etc.

 

I have seen a couple of cars around here with sides and rear (probably got the front scraped off on some of the hellacious bumps), never with just rear tho. The rear piece on that kit looks like it probably has a low profile, so it might work well. If not you could always just get the rest of the kit. Just mount the rear in some temporary fashion to make sure you like it first, and then do it correctly.

 

Thats what I was worried about, I just thought I could pull it off like the later SLP SS's with the center mount.