For the 2bros exhaust and foam filter, the juice box works very well and since I can get you the settings it should make for a very easy setup for you, so that you have very little or no messing around with tweaking your air:fuel. I have never needed to take away fuel from the stock settings. If you are going to get into any engine modifications or anything else I would recommend going to a power commander.
As far as the ease of setting up the power commander and how much tweaking you would have to do I really don't know. I think if someone has a map for your setup you should be able to just upload it and have very little tweaking, but someone else with experience with the power commander would have to confirm this for me.
I have never had any popping noise with my exhaust, so I would suppose it is from running lean.
Well, I guess to conclude the TBR juicebox has been very good for me but I know there are some people on here that have gone from a juicebox to the power commander and could really tell you what makes going to the power commander so worth it.
-UNI Air Filter
-2 Bros Juice Box
-Pro Armor Fat Pegs (Black)