Downforce Front bumper undertray mounting question

[MvM]

Some time ago I bought the Downforce Type-R Front bumper undertray.
It looks very nice and well made and is not too heavy.

However, when I tried to install it, I run into some problems.

As I understood, the undertray is fixed to the front bumper by using the exact same mounting points as the underlip (air dam).
However, when I tried to mount the undertray, I found that the air dam has a row of small vertical ribs on the inside that prevents me from mounting the undertray.
Naturally, my next thought was that the undertray should be fixed between the lower front bumper and the airdam, but that would leave an ungainly gap between the air dam and the bumper. Also, the curved sides are shaped slightly different, so that is also not a solution.

Has anyone else had this problem as well?

Or should I just cut out the ribs from the inside of the air dam. They must be there to provide some extra strength and rigidity to the airdam, but I am pretty sure it will do its jobs just as fine if I cut the ribs out.

 

[roondogg]

I hate to say it but you may have to buy their battery undertray. It mounts perfectly to their front bumper undertray and solves front aero issues!! It's a large aluminum piece. Try to PM or call them. Go to their website and look up some of the pictures and you will see what I am talking about. Lastly, make sure you got the correct piece. There is a NA1 and an NA2.

Good luck.

 

[jorligan]

Clip the little ribs and then no issues. I did that and it fits well. The Shine front splitter also fits this way but if your car is lowered, expect to destroy the splitter pretty quickly.