My wife rides with me on many of my long road trips. The longest was just under 5,000 miles over 10 days. From 100+ degree temps to sub freezing temps. I am a geezer, so I still have my stock exhaust, and heat exchangers, full footwell blowers, and a kick ass AC system from Griffiths.
12 hours of driving is no big deal, and I have a happy wife with me for the night.
This is with my helmet bag and tool bag still in the car. Taking a wife does add to the luggage a LOT!.
So enjoy your loud exhaust, I will stick to my stock muffler, and fantastic heat, and great AC. 41 sates and Canada so far on a goal of hitting all the lower 48.