@Azisbest , I have not dealt with Chandler as I live in Buckeye, AZ with a gorgeous 2018 roadster. I am glad your bike is back with you.
I have been dealing with GoAZ in Peoria and Scottsdale in trying to get upgrades but only with some help. Last year, I a shorty 3 in 1 from dave platt exhausts from Nottingham England and made a world of difference. People say its just as loud as my former 2016 road glide special with vance and hines duels.
The rocket 3 is a great bike if we can have someone local to help with tuning the bike with small mods that would be great. I recently learned from dynojet that there is no power commander 5 yet, according to their techs via email, that is specific for a 2018. They say it should should work but wont back it. Ride safe ya"ll and watch out for cagers