the diffuser overall when looking side on, comes out alot more to the 07+ libs because if you look at the difference between the pre-face lift and the face lift model, the extra hump/bump (what ever you like to call it), (on the actual 04-06 stock bumper diffuser), interfears when trying to slide it back under, the only way to overcome this problem is to actually cut the bump and then shave down the edges to became more in line with bar, but i don't think many people will not like to do that, that is why they have made it like this.
clarence,
in what way do you mean the diffuser on the sides flares out alot more, if you mean around the exhaust on the outer ends of the diffuser. yes, thats what i think to but also i had to pull it out a bit when installing it cause it wasn't really in line with the edges of the bar, not the best when working with glass as you know cause you can never really get it right 100%. to be honest it looks like they have used the 07+ model diffuser and worked off that one, because if you notice, like i said the diffuser looks to be swung out when looking side on to get to the height and then filled the gap on the edges and curved the sides to match our bumper if you know what i mean (sorry hard to explain when i can't show you exactly what i mean...
