So it's been an entire summer and didn't get around to filming my exhaust. I guess that's what happens when you have a 'realistic' job. With a few trips to the hamptons among others, the exhaust has broken in even more and I'll say that it sounds pretty awesome. Everything seems to be holding up just fine, too.
Dying for a retune, however. UpRev now claims they support the FX50 again but won't tell me if they have the ignition timing maps without me providing my ECU info. Been contacting the tuner that did my car originally to set up a retune date. Looking forward to the added ~15 hp.