Kawasaki ZX25R-2020 / NINJA 250 Race Airfilter

MWR Full Race Airfilter for the
ZX25RR → ’20/’25
ZX4RR  → ’23’/’25
replaces original airfilter
The MC-040-20R can also used on the Ninja 250/400 & Z250/400 in combination with the high performance Velocity Stacks MWR-VS-435
No modifications needed
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The MWR Full Race Airfilter is developed on track , developed for racebikes NOT for roadbikes , not on dynometer but in real life , on track , professional racebikes with dataloggers . protection is on the same level as the performance filter & “HE” filter only for a shorter time due to the much more open structure of the foam materials.
Unlike all other sportsfilters the racefilter creates a much better , equal airflow over all cylinders , means you need to adapt fueling of all cylinders seperatly to achieve maximum effect of the “HE” filter . Concerns all twins , V-twins , three , four , and V4 engines
Remapping the ECU or Fuel Control Module is highly recommended .