Yes, a few actually:
I ended up having to return the auto-tuner. I didn't have anyone to weld the bung from it into my exhaust. I got an air filter from BMC (Installed incorrectly, of course. Damn super glue.) and put that in my air box, and it's been running perfectly since.
I got my bike flashed a bit after getting the PC5 installed. There's a difference, but I also realized that an ECU flash is a load better than a PC5 if you're not going to Auto-tune it. So if you're wanting more performance, go with a Flash. I have my RPM limit set to 11k, my throttle was made smoother as well. I'm going to go back to my tuner in a couple weeks and see if he can re-flash it to do some exhaust pops, because I'm not going to keep the bike stock in terms of fenders, because of what's below.
The person that did my flash only charged 200 bucks, so no complaints. Would I take the PC5 out of my bike and resell it? Actually, yes. An ECU flash can get that much more performance out of it. Gotta learn somehow, but it looks cool, so I'll keep it. ¯\_(ツ)_/¯
I had the idea to use the bike for wheelies and stunting (Despite being an odd-ball), and it's working great until about a month ago when it slid out from under me. A bit did break, but nothing super vital, only 300 dollars in repairs. Fell on the left, screwed the generator cover, and the aftermarket tail light I had on got scraped up. But now I have a good excuse to turn it into a proper stunt bike, going to get a cage and upload those pictures when I get it all done. And yes, I WOULD fix all fenders and all... but I can't find any rear pieces (They're broke, left side is snapped in half), and I need to replace my front fenders, but I can't find good ones on ebay, and OEM is $200+ each side. I've taken my front highlight assembly apart, but still have the cage thing for the assembly to latch onto. I zip-tied my tach to it, and took off my turn signals and ziptied them to my forks (Ghetto as hell, but they'll be fine.)
But on other notes, the exhaust itself is fantastic. I love how loud it is, how it turns people's heads when they're not paying attention while driving. My friends have been saying my bike's too damn loud, but it's whatever. Since it's about to be a stunt bike (I will definitely post pictures) it doesn't matter. The only thing that worries me is that if the bike falls on the right side, it'll damage the carbon fiber. I'm looking at an IXIL (Hyperflow) exhaust next, and will probably either switch between the two, or keep the IXIL because they look bad ass and have baffles.
TLDR; Returned auto-tuner, PC5 =/= an ECU flash. (ECU flash better tho), I looped the bike, not replacing the broken fenders. Turning it into stunt bike. May switch to IXIL so they don't get damaged. Yoshimura = ****IN LOUD according to friends.