OEM is in two pices and also has some slots in order to fit exactly on the bumper.. Also I think OEM and Aidan's splitter are made from a different material..
OEM is plastic so won't shatter so easily, I found one on ebay for a bargain too, so it is possible!
EDIT: Not that a replica will likely break but in the event of hitting something, such as a wabbit, the oem will stand a better chance of remaining intact.
+1000 to Wallace!
Aidan has done a great job with the front splitter.. In the hole story I'm the strange one because I want all things on my car to be Toyota OEM parts..:haha:
P.S.: Wallace, can you send me with a pm a link to that splitter on ebay you found?