Here's my setup. I've got a K&N OEM replacement air filter. The pair valve is removed. I've got Yosh RS3 slipons, with all of the packing removed, but baffles left in. Stock Header pipe, and a stage 3 yosh re-map. Should I do the air box mod, and if yes, which one? Also, is my remap too high. The yosh remap I used plugged directly into the computer and had five stages. I set mine at three, but there is alot of black soot accumulating on my pipes. Seems to be too rich. There's also 50,000 kms on the bike, so maybe, it may need new valve stem oil seals or rings, or both. Just wanted to know what you thought.