The holes are used as tie-downs in shipping I believe.

i checked for mine the day i picked up the car (thanks forum!). luckily they were installed. if i discovered the weren't after a while of driving, and i lived up north, i'd be asking the dealer to inspect it for any rust and fix/replace it. thankfully we don't have rust in florida anyway :)

So I ordered the underside plugs and they went in fine, I didn't even get down on the ground just felt underneath and mashed them in. However the plugs that go over the struts didn't fit, they seem far too big in terms of diameter. I ordered the part number from earlier in the thread, so FYI I guess.

PLUG D40
SU003-03038

Pics, by chance . . . ?

My bad, here you go.

Product placement!
http://i.imgur.com/1OfZKayl.jpg

You can see it has this lip all around it.
http://i.imgur.com/KKUtp9Tl.jpg

And the money shot, if someone knows how to shoehorn that on I'm all ears.
http://i.imgur.com/xsWQe3Dl.jpg

Those look like the plugs the BRZ Limiteds use for the spoiler bolt access holes (trunk lid underside).

EDIT - I looked at my car, the spoiler plugs are a lot smaller than the holes for the shock mounting. Having said that, I don't see any way to get water into the trunk from those holes. The top shock flange appears to be watertight (shining a 100W shop light by the top of the spring resulted in no visible light when viewed through the hole), and even if not - the shock is not in the path of tire spray, AND you'd have to fill the channel in the bodywork before any spilled into the trunk.

Looking at all the part numbers referenced in this thread...I'm 99.9%, nope, 100% sure there are no plugs intended for installation above the rear shocks. The plugs in the diagrams referenced are below the foam inserts for the jack assembly.

They still might fit. Try some silicone spray.

If it looks like they're unnecessary then I won't worry about it. I was more concerned about the underside plugs anyway.

These are what you have:

So now that we're almost into 2014, has anyone actually gotten a vehicle WITH the strut tower cover?

Potential design flaw with factory rear suspension? (WATER in boot area)
 

Bump for new owners!

Let's assume someone may have popped a plug into the frame all the way and can't feel where exactly it went. How would that someone go about retrieving the plug?

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Lol! Don't worry, Just get a new plug ;)

Kinda what I figured. I can't here a rattle, and a flexible rubber plug won't damage anything. Ah well.

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