50/50 on the break in. I think I asked same.
Some say rub it and baby it others say lay rubber in the showroom floor as you leave on the back wheel.
No real proof as to which one works better. Just whatever your comfy with.
Putting the exhaust on wont hurt it but then you should also do other mods that go with that full system like PC , filter and dyno tune.
Me I left mine alone till it hit 1k and then did the mods.
Warranty wise God forbid something does go wrong with it in the 1st 1k miles.
You dont want to have ripped it apart and put all kinds of things on it and be hoping the dealer will cover whatever is wrong. Easy way out for them...
You did this and that and sorry you voided your warranty.
Thats a worst case scenario but with a new bike worst case should be first in your mind.
No hurry the parts and mods will be there. Ride it for a while , baby it , get on it but leave it stock for at least a bit to make sure that its right.
Welcome and congrats on getting the fastest most wicked colored HIGHERBOOSA than any other...