The more unrestricted the pipe the more you'll likely notice it.

 

Me, I'm just getting decel popping. No ear splitting bangs. Now that I have fitted the two Bros pipe is it necessary to adjust the fuel/air ratio mix??????? Any thoughts anyone. Want to avoid messing about with it if possible.

 

I run the 2-bros as well and get the decel popping, but am happy with it. I was told if the bike is a tad rich, you will also get that, so I am leaving it alone. Better to be slightly rich than lean IMO.

 

Mine pops too when I get up toward 4-5000, you can't have it perfect. You have to jet the bike for the average of what you will be riding.