Yup, they're the catchcan and crankcase vent "mods". Oil pump pickup will be down in the bottom of the engine case on the inside, it'll pull oil from more rear-wards so you don't run your pump dry and lose oil pressure when doing long term wheelies.
Crankcase breather lets gasses that slip by the piston rings during normal engine use escape out of the crankcase more easily. If you build up too much pressure in your crankcase you can start pushing oil out past seals and it's not a good time.
Looks like they bought an actual kit for that one:
NCY Oil Cap Crankcase Decompression Tube M20x2.5p
I'll be honest and say I don't know why the did both a breather and a catch can, since that catch can is vented and not run back to the air box at all.. kind of weird.. you could run something like this and rid yourself of both:
616-1432200 Kitaco Oil Catch Can - '13-'20 Honda GROM / GROM SF - IN STOCK
Usually you only see these mods on big bore or high compression engines. With the standalone ecu, cam, and injector I'm not super surprised the old owner put one on.
With the aftermarket injector and cam, a powercommander might be a bitch, just saying. if it runs well I'd leave the ecu the previous owner had on there alone or try to find where he got it and see if they can re-tune that for an intake swap rather than starting from scratch with a PC.
