Good budget tires are the Bridgestones, Better grip for the more sporty rider are Avon, Metzeler, Pirelli, Michelin.
Stock system is setup for max power/emissions combo with noise limits in-mind. None, if any, aftermarket system will comply with the standards set by the Feds.
But there are many systems sold and they all need a "tuner" to adjust the fuel mix so the bike retains the flexibility it has with the stock setup. Look through the posts to get an idea how they look and many are on youtube so you can hear them. Most are very loud (in person) and this does not mean power!
If you like the stock look and just want some more sound do the "drill mod". You can easily find info on this with the seach feature.
This will give more sound without affecting how it runs.
Otherwise you can find lots of opinions here for aftermarket pipes, tires and oil :hidesbeh:
Mostly enjoy the ride and welcome :thumb:
I had picked out Pirelli Night Dragons for $300. When I called to make an appointment to install ($15 per wheel off the bike) he quoted me $310 for Metzlers. All I can say is ...WOW!!! best price I have found so far.
I got my Pirelli NightDragons through Rocky Mountain, and had them mounted locally. Night and day over the stock Dunlops. To be fair, I haven't run the Metz or Avon, but I will definitely pick up another set of Pirellis when it becomes necessary. They give a new level of cornering confidence, with less perceived lean in. I had a CBR back in the day, and ran Bridgestone Battleax tires and loved those as well. If Pirelli didn't make sizes for our VRods, I would give the Bridgestone VRod tires a hard look.