Dude, wicked steal. I only managed to get my '10 at invoice at this time last year when the 5.0s were looming in the near future. What options does she have? IMO you can save a few hundred bucks and have your local muffler shop weld in a pair of Magnaflow Magnapaks. I did it, cost $300, and sounds awesome. The factory pipes are actually pretty nice, and unless you're going to go crazy FI I really don't see how spending the extra cash to have different axle-back pipes makes a difference. The welded in Magnaflows, if done right, look factory, sound awesome, and outflow the factory choke boxes. Just a thought...
Edit- second thought: spend the saved money on a nice chin spoiler from CDC. These cars look awesome with one, definitely a + in curb appeal.