My first question is, who gives someone a motorcycle? You have a better quality of friends or family than I do. That's apparent.
But to address the question at hand Chuck is right. My 1500 came with Cobra Speedster Shorts on it and it was wide open and obnoxiously loud. I put some generic short baffles in it and no retuning required even when wrapped with fiberglass packing. I blew one of those out of it while I was with Chuck and Old Dog when I backed out of the throttle hard. I noticed it sounded odd but was not aware it had happened at the time.
Long story short I ordered a set of Cobra Baffles Specific to the pipes ,they come in quiet and regular. I put the quiet ones in and still wonder how loud the others would be if these are called"quiet". Same story on the tuning, nothing had to be changed. The FI system is an open loop with no O2 sensor.
When I opened up the intake side I did put a fuel management system on it If it already has an open air intake , so it can suck more air in and out more out you will probably have to do so too.
Stock air setup and adding the baffles from the pipe manufacturer , I wouldn't worry about it, it should be fine either way.
That's just my experience but it should give you some idea of what you want to do , although I would buy the right baffles for the pipes , it's a lot easier. You can afford the baffles after all someone gave you a bike, lucky dog
If you see it on my bike I did it
Current ride 05 1500 Classic FI
lovin' the new scoot
"When all is said and done,usually more is said than done" UNK
Click on one x and drag to the other to read between them.
XI waited patiently for the Lord; and he turned unto me, and heard my cry.