had my firewall off last night trying to track down a rattle, and noticed how glowing orange the exhaust gets after just a few min of running

This was roughly 5-7 min and not going over 5mph, just down driveway and back. Is this normal for these , i know some talk about a reflash from polaris but i thought that was to fix backfire issues which mine hasnt done as of yet, however sometimes it does take a bit of time to start

I dont do much in water type riding, but i think im going to do some 2" heat wrap on this area, it does get pretty hot on the back of my arms when riding. I know some report rusty pipes but ive wraped before and never had issues on other applications.

any feedback would be appreciated