Here's a thread with pictures before and after the kit installation.
aerodynamic-kit-before-after-t510619.html
IMHO, at least on black, the Aero kit is not worth the hassle & the money since the difference is way to suttle. I used to park right next to exact same EX at our work parking lot & no one tell the difference between my EX with the kit, and somebody else's without. I myself had to look hard to see the difference. Possibly, with lighter colors one would have the perception of greater difference. Someone mentioned they just painted the lower part of the bumpers and sideskirts. The results would probably be almost the same.
In case you decide to buy the kit, there's a link in the thread where I've bought it.