The only thing I heard of that would fit would be a b8 k04-64. You would need a custom tune. As far as an exhaust, a lot have done the suitcase delete. For the racing cat, personally, I would spend $100 more and get the b8 APR dp. There's a thread of us "unicorns" in here. Check it out if you haven't yet.

*Edit:
Here's the link:
https://www.audizine.com/forum/showt...oon-C7-A6-2-0T