Easy install, fun to ride, and awesome to show off!
As straight forward as this kit is to install, take your time and be diligent. You'd be surprised at how easy it is to work on these engines. Installing the Stage 3 Kit was a saving grace and it absolutely woke up my Grom. They'll send some guidelines with the kit as well.
When it comes to performance, no longer does my Grom slow down on inclines; as a matter of fact, I was able to keep up doing 60 uphill in the mountains of North Carolina and hit 70ish+ on a flat straight away. The power is there, along with a gnarly sound. I have the MNNTHBX Intake and Yoshi exhaust. Don't be intimidated though, any exhaust will do as long as you tell them which one you have as quite a few of the exhausts out there can get pricey for the Grom.
If you have a 2022+ Grom or Monkey and the spare cash, I would absolutely get the Stage 3 Kit for them.