Originally Posted by X5 Meister

Pretty clear. Let me tell you what is confusing as written..

1. Are you are saying that the only difference with the LeMans kit is that the rear flares wrap underneath a non-diffuser bumper? [Yes] B/C the write up seems to imply that the LeMans kit has a different FRONT as well as rear flare when you say "LeMans Special Edition Style Front and Rear Flares" [I can see how someone can assume that. However, the front and rear flares are in a kit. So, to this end I added the words "retrofit kit" to the section title. Thanks for pointing that out.]

2. Is it correct to say that if you have an 'is model (obviously with rear diffuser) you CANNOT use the LeMans kit?
[I made an assumption, correctly or incorrectly, that someone with a 4.6/4.8 would not want to buy the LeMans retrofit kit. IF that different rear bumper support FITS with the diffuser, which I don't know, someone could just buy those parts and not the whole kit (assuming its available separately). Do you think I should add those options w/o really knowing?]

3. There seem to be 2 options for people with 3.0/4.4 models that do not have the rear diffuser of the 'is models. Those options are the 4.8 style flares OR the LeMans flares. What you should point out is that if you do not have the diffuser, the 4.8 style flares will look stupid (I am correct) and you should install the LeMans flares unless you plan on eventually installing the diffuser which in that case you need to install the 4.8 style flares because the LeMans flares will be incompatible (assuming #2 above is correct as written). Are these true statements? [That's why I made this the first statement:

"First, this is not the end-all/be-all for running boards and flares, etc. For example, I didn't list parts for 4.6/4.8 spoilers/diffusers - there's already an article on this."

I will add some more notes to make it even more idiot-proof per your suggestion. However, a person must do their own due-diligence.]