So I go thru windshields like they're made of candy it seems... My 2014 is now on its 5th one if I have the count right, this one due to improper install of the last one a couple months ago (tech cracked the corner of tyhe glass installing the cowl trim cover). So some things I found from the new tech that may be useful to anyone having it done...
1) Try to insist on having a windshield put in that has the molding (rubber trim on sides and top) pre-installed from the factory. If the installer has to install the trim and has does not have super steady hands, the molding will not be straight on the windshield, and once installed it will never look right. It will appear to be uneven, this is especially noticeable across the top.
In this photo, is an example of the molding not being applied correctly. If you look from side to side you'll notice the black area gets larger from passenger to drivers side. From the front it is very noticeable, and looks very crooked all the way across.
2) Ensure the tech has replacement clips for the cowl panel, the ones across the center are extremely easy to break and you'll develop rattles if not installed. The tech that did my last one left out 4.
Empty clip hole (yes my engine is dirty, it is an off road vehicle!)
3) There is a foam gasket that goes between the dash panel and the windshield, ensure its not damaged when the old window is cut out, if they use a pull knife around the edges from the outside it should be alright. If they use a wire cutter from the inside out, odds are 99% that it will be damaged. Insist that the gasket gets replaced, you'll thank yourself later (no rattles). If they don't have or know about it, self adhesive weatherstrip about 1\4" wide will work.
This is my dash redone with home depot weatherstrip (cheaper and easier then the dealer part):
Foam gasket is #20
in this diagram:
4) Make sure they properly prime the window channel, mine had a couple rust spots that needed to be fixed because the previous installer did not prime scrape marks from cutting correctly.
5) The cowl side trim panels in each lower corner of the windshield are extremely easy to damage (break the plastic snaps) when removed, make sure they are sitting snug against the body, if not odds are the snaps have been damaged, this will also cause rattles. Also make sure the glass has not been damaged or cracked at the corner, the covers are difficult to remove and the glass is fragile at these locations.
This is a corner cover that was installed one time, the center snap was broken off the first time it came out:
That's about it for now... BTW if having a windshield installed in a hot area (Las Vegas etc) ask for a Pilkington EZ KOOL replacement, the interior temps are night and day and it has additional UV protection as well as thermal rejection, also seems to hold up to chips much much better...
Eyesight windshields may have to be Subaru glass only, I have not found a aftermarket manufacturer that is endorsed by Subaru for an eyesight windshield, if you find one please post...