K&N filter's aere designed to clean claen air they are therfor less restrictive, if you takr them into an off-road enviroment they lit allsorts of small particles into the engine, run a few tanks off-road with a K&N filter and tanke the engine head off the piston will bel covered in small particles dust. Unless you run on-road stay away from those air filters.,
Money is better saved for a higher cc engine.
Thanks