Mike, that looks great. Good job.
FYI, I was definitely not the first to go with the 3487 exhaust on this site. I learned of it here.
And mine is a bit proud of the bumper too; just took a little punishment from a very high curbstone. It’s also scraped on the way out the driveway more than once.
Scraped up a bit but no flaking so far. If I were you I’d go ahead and cut it. If you run into flaking later you can always add a clamshell tip or something.;)