

Sir, have you even read the engine warranty statement that came with your mower? My bet is that you tossed it and the owners manual in the trash the day you bought it! Modifications to the engine void your warranty with Kawasaki. Furthermore, modifying the engine in a way that changes the emissions is an EPA violation. A lot of posters on this forum poo poo that because they are shade tree wannabe mechanics. If you feel you need the added filtration then you bought the wrong mower model.
For answers on emissions, I would recommend you contact the EPA.
Our national government is currently mostly non functional.
I just don't how long the plastic engine shroud is going to hold up to the vibrations and the weight of the Donaldson air cleaner. Really depends on use and what smacks the air cleaner.Mine has a custom metal bracket that bolts in to the holes
where the door hinge bolts go so it'll be strong and sturdy View attachment 67974