Thanks everyone!! I took my co-worker out to lunch today in the MC. He has an '18 GT3 6 speed and an '81 930. He said the MC was the best sounding car he's heard in long time! I don't think I'll be touching the exhaust, I plan on leaving it stock.
I do have an appointment for a full correction and ceramic coating (Modesta). I'm going to ceramic coat the wheels myself when I put the spacers on, I'll be sure to post some pics of the spacers. I am thinking of the DBW module, but I do like the play in the throttle. I have one in my Raptor because it has terrible throttle response without it, but so far I'm ok with the MC's response.
Here's a (crappy) interior picture.