Maserkist

I remember reading a few posts about removing a plastic piece inside the side vents to increase the air flow from them. (it's been a while since I read them) But for the life of me I cannot find anything via the search function.

I was hoping to find a bit more information about it before I started digging around under the body panels.

Has anyone done this? Are there any noticeable side-effects or drawbacks to it? -- Is it overly difficult to do? Must the wheels be removed to get to it?

Any info would be appreciated!

-Chris