Part: Honda CB500K / CB550K / CB550F Air Filter
Why You Need This: Yes, we've got them. The factory air filters for the Honda CB550. If you are keeping the stock air boxes then your bike needs these. The air filters are shipped as a direct factory style replacement. Factory style filters such as these are necessary to keep the factory jetted carbs running spot on.
Installation Tip: Depending on how much of your original air box is still in tact, you may have to configure something to keep the filter pressed up again the carb inlet manifold. While the CB500 filter is unique, the CB550 filter variations share all of the same dimensions except the outlet hole size so, they will both fit any bike, the smaller-hole one simply provides more air restriction.