K&n filter mod


Do not use k&n filters on your busa stock works better. You will lose power if you switch to their air filter.......................


Hayabusa Immortal
I think we're talking fuel filters here, not air filters.

BTW, you can gain a seemingly insignificant amount of HP with a K&N air filter, but you will need to remap to take full advantage of the air flow. In which case, just do the full-box mod with a BMC filter. However, you risk getting silicates and other crap in your engine, which is why I still have stock on mine.


You have to ask yourself though is it worth the 200 dollar remap for what little horsepower gain you will get. I think not......................................................................
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