Normal amount of rust for a 13?
 

Over all the car is super clean, engine is flawless, not a spec. However looking under the rear this caught my eye.
http://i.imgur.com/aJEmIP0.jpg
http://imgur.com/aJEmIP0
Is this something I should be concerned about purchasing?

Thanks

No, mine looked a lot worse and it's also a 2013.
That stuff under there is not stainless.

Wouldn't let that worry me one little bit. The combo of heat and moisture causes exhaust systems to rust even with the best. Easy and relatively cheap to replace when they get real bad.

The rest of the parts in the pic look super clean!

OP: You're fine, trust us northerners.

Side story--Years ago, my sister moved to Las Vegas from Cleveland, and took her 1999 Ford Escort cross country. I've heard some had reliability problems, but I had one as well and they were tanks. She and my parents had the car checked over and repaired stem to stern, and it was in as good a shape as possible when she left.

She made it there fine, fast forward a couple months when she took her car in for an oil change and scheduled maintenance, and received a frantic phone call an hour later that the mechanics were convinced the car was totaled due to being "rusted out." They actually refused to work on it for fear of breaking it! These geniuses had never seen what a few northern winters will do to a car, and had to actually talk to a mechanic back here to convince them that the car was safe to work on and roadworthy. We all got a good laugh out of that one.

That's like one month's worth of winter and salt

OP don't worry about it

It is still stainless, just not T304 like good aftermarket exhausts. Probably T409.

I give these cars 10 years in the salt-belt until they are done.

Even the good ones will rust (or at least oxidize) eventually. Stainless is a great name but not a truly accurate description.

Thanks so much for the reassurance guys. Much appreciated!

Stain-resistant steel doesn't sound as good.

Better than "guaranteed to stain if you piss on it steel"

Why are you pissing on your exhaust pipe?

There are better places?

We just had to replace all the stainless panels in the washroom at work since several were eaten right though from piss. Apparently our guys have accuracy issues.

Or "Its gonna change color and look like rust after you get it really hot a few times" steel.