run away quickly.
anyone who makes such a dumbass claim as that can't be taken seriously.

 

Ha! That bumper looks exactly like a stock bumper with this M-1 Speed rear air dam attached. This is what I have on my car now. I also have this Raven duraflex bumper in my garage as well, but ultimately decided not to install it because although it fits decently enough (as far as duraflex aftermarket kits go anyway - which is to say "functional" but not perfect), it would take some patience and body work to get installed so that it looks good - plus it just feels too wide and bulky for the agile, slim-looking build I'm going for. So now it's sitting in my garage along with a set of unused side skirts waiting for anyone in SoCal who wants a very cheap rear bumper to come pick it up give me pocket change for it.

The M-1 Speed rear air dam I have installed now fits decently enough, although I did have to hack off the lower 4-5 inches of my bumper (the fake "mesh" part with the rotary triangle in the center) to make it fit properly.