What do the underbody air diffusers look like?

 

I think the rear underbody air diffusers are additional pieces of plastic underneath the rear part of the car that help the air pass through easier so there is less drag on the car.

 

How hard is it to install the rear splash guard? Does it involve drilling thru the car and can one do it oneself at home?

 

Instructions say you need to drill three small holes. Looks pretty easy except that you have to take off the rear wheels.

 

What do they cost installed on an 06?

 

although i do think the back looks slightly empty without it, it does seem like an afterthought pasted on there....
so i'm kinda torn with or without
just my .02

 

The install isn't difficult at all. Took me about 30 minutes. Just need to jack up the rear and remove the wheels. After installing mine, I have one suggestion. Remove the existing lower bolt > hold splash guard in place > replace lower bolt > line up splash guard > remove tape strip (this step is last in the instructions) > drill holes > install speed clips > screw in screws and install bottom clip. If the alignment of the screws causes the splash guards to bow even a little bit, the tape may not adhere sufficiently. My $.02.

 

Thanks for posting these pictures...i was wondering what this would look like as well.

 

Where is the cheapest place to get the rear splash guards painted?
I think that everythingg35 is like 75 bucks or something like.

 

The rear splash guards come painted already. I got mine from EverythingG35.com