If all your seeing is a slight gap(about the thickness of a credit card) around the very outter edges, like 2 to 3 inches, it's what I've got on mine and what I've seen on the factory installed ones. Like I mentioned before the mounting tape doesn't run all the way to the ends and the rubber/foam strip is there to prevent the edge of the spoiler from rubbing on the painted surface of the truck deck.
Now if the rubber/foam strip is protruding or sticking out of that gap something could be wrong. Also the ends should not be loose, as mine are very snug.
I would check your local dealers lot and look for one or some that came installed from the factory and compare, then if you see something wrong you can point it out to them.

 

That is it exactly duffster. I have not seen a factory one on the lot, but will go hunt one down to compare.

Thanks for the all the feedback guys!

 

It's normal. It should be very barely visible and tucked under. Shouldn't be sticking out.

Should look like this:

 

Mine looks like DJ Hellfire's
Kind of a bummer, but O well, least the chrome is covered up

 

Bingo!

That is the exact gap that mine has. I just wish it fit a little better on the outer edge.

But I do still like the look of the spoiler.

 

That just looks wrong, the adhesive is not sticking at the outer edge. I have the coupe (different I know) with a factory installed spoiler the double side tape they use is a different color (dark grey) expands a little more so the edges stick.

 

Yeh, anything that covers that chrome thing is a winner... LOL

I still think its weird that you gotta drill a bunch of holes to put this thing on. It looks greatm but couldn't they just use the same holes for the chrome thing to hold it?

 

mine looks exactly the same... its so annoying that sometime leaves will get stuck in that little gap

 

That IS wrong! Looks like the boogered up spoiler on my '97 Maxima that I backed into a shopping cart at Home Depot a year ago. They need to fix it!

 

If this is like this on multiple dealer installs from around the country, then I'd say it's not the installer at fault, but the way it's designed. Mine doesn't move at all and is not loose. This is also a very up close macro shot. It's almost like zooming in on a small nose hair in the back of your nose.

 

Super Macro. I can see dust. LOL.

One can go crazy paying too much attention to little cracks on the back end of cars and things.

Looks good to me.

 

Other than the look of the new rear spoiler, are there any noticeable effects on driving dynamics?

 

None at all. Purely cosmetic.