Aero Package (read underbody air difusers) coupe

I know that the aero package comes with the spoiler and the underbody air difusers...But, what exactly are the underbody air difusers?? Anyone have a pic to show the difference between a coupe without the aero package, and a coupe with the aero package?

No pics, but they are supposed to cut drag by .01, and reduce lift. To me, that means NOTHING, and I probably would NEVER notice. I didn't like the look of the spoiler, and the diffusers are no big loss IMO, so I passed on both and saved some $$

does that package come with mud flaps? my coupe doesn't have them but i am trying to get a hold of them. they are small and color-coded to match your car.. i think the protection would be a great investment, especially witht he 18" wheels sticking out a bit further than the 17's.

if not, anyone know how to get a hold of these? i can't find a dealer that has them or that doesn't say they're not shipping yet. any leads appreciated.

I believe that as of the current batch of cars in production, they're making the mud guards standard on all Coupes. My coupe doesn't have them, and I get horriffic road spray on the sides of my car because of the wide stance. I haven't seen a picture of the mud flaps installed, but if they look good, I may add them too. Infiniti.com says they are available, and that it's a no-drill install. I'd call your local dealer and see if they can order them for you. I don't think it has anything to do with the Aero package, however.

they are supposed to look decent.. would anyone mind helping me figure this out..?

I've had prices quoted to me that range from $85 - $170. Some say that's per axle and some say its for all four. I've heard its a 1 hour install job. Some dealers say they can't order them now, others say they can. Has anyone figured this out?? It's a must-have investment IMO.