This is what the diffuser looks like on a
Genuine Z-Tune looks like zoomed in.
(this one is a little torn up in the front)
Notice how it's all flat and level all around where the bumper meets the diffuser?
As you can see, the diffuser is level all across the bumper.
This is the diffuser of the pictures from the posts above zoomed in.
Notice how the sides are lower?
As it gets towards the intercooler section, it gets higher.
As you can see, it's not level all across, the sides are lower and it raises up as it gets to the middle/ intercooler section.
The reason why I know is because I am using a Genuine Top Secret CF Diffuser myself. Compare them with mine...
Most importantly, I know because I know who's car that is and I have seen it with my own eyes. I didn't just steal pictures from the internet and lied as well as make false claims about things I do not know of.
Cheers.