I'd go for the SRT-6 if you can swing it, you will not be disappointed, but if you get the limited, you may wish you opted for more power down the road.
I know there are a lot of people on here that wish they had more power now after owning their limiteds for a while.

Yes the seats are cool, the brakes are bigger, the wheels are different and a little lighter, sport tuned suspension, the exhaust, then there's the front bumper, the high down force spoiler, and the most important of all...the supercharged AMG engine.


As for the Borla...
Unless they came out with a second system for the SRT-6, which I doubt, then they don't have one out for the SRT-6.
As far as I know they only have one system listed and its for the regular Crossfire, not the SRT-6, which IS a different system.

My past 4 cars have had aftermarket exhaust systems and at first I was disappointed when I found out there was no options for the SRT-6.
But...after owning mine for some time now, Im quite happy with the stock system. Its actually nice to have a quite system that doesn't draw attention all the time, but it does still have a nice sound when getting on it.

I don't miss the annoyingly loud systems anymore at all, especially when cruising down the highway while trying to listen to the stereo or talk on phone lol.