MWR Air Filter for '18- Kawasaki Ninja 400/Z400, Ninja 250/Z250

Performance (Standard) air filter (MC-040-18) for road bikes

Not just a copy of the OE filter, but a much better designed, high flowing filter.  Suitable for everyday riding and even occasional track days! you can run this with out extra tuning, but as always, more air means more fuel and you should have your bike Tuned. Clean and oil at least once a year.

Full Race filter (MC-040-18-R) (black)

MWR developed the Full Race Filter for riders looking for the best out of their bike when participating in racing or trackdays.  They offer the best air flow possible from such a small filter. - Tuning is HIGHLY recommended due to how much more air your bike will be bringing in.