Back in the day, pods used to cause all kinds of jetting problems on carbureted bikes, due to the unstable airflow of not having an airbox. A stiff crosswind could cause the bike to go extremely lean and bog out. They were nothing but trouble in the shop, and I always steered clear and got my customers to, too for that reason. You could spend hours jetting one, and it would only move the problem to another throttle position, load, or RPM.
That said, I'm not sure how that would play out with FI - I'd assume the same since airflow would be affected (You still need the correct amount of air regardless of how the fuel gets into the combustion chamber), but on these bikes the throttle bodies are tucked up and away rather than sticking straight out the back between your legs on the old transverse 4's ... so maybe that won't be as much of a problem as it used to be. They'll give you more power, but it'll be on the top end due to resonance. That plays a HUGE role in power output, much like an expansion chamber pipe on a 2-stroke, but much less dramatically. Sound waves can actually stop exhaust flow for milliseconds after the exhaust valve has already opened, or pull it out strongly which pulls in more fuel mixture. Lots of science to it that I can't explain fully.
If I wanted to gain some power, I'd do an aftermarket exhaust, airbox mod if possible, camshaft, and a dyno tune. Way more bang for your buck. Pods run the risk of increasing power at the expense of keeping dirt out of your expensive engine ... just like a K&N filter.
And the way the supply chain is right now, I'd wager you'd be waiting for new parts from Japan for MONTHS at this point ... Don't even get me started on that. We're governed by a bunch of complete MORONS.
