Anyone here have these things on their car. If so, are they any help or just for aesthetics?

 

currently there are two that are available - one from J's and one from C-West. The J's fits with the J's front spoiler (half of the front fascia) and the C-West fits with the C-West front fascia (entire clip).

They are very functional, but are not recommended for street use. Of course it will push the front end down a little bit to add some downforce there, but... its not really needed for street or even spirited driving IMO.

 

I think they look pretty fierce and nice, too bad there isn't one for the stock bumper.