wanted to put some kind of aftermarket air filter on my 450r and i was wondering if the ehs system is a good one or if anyone else has some better ideas for me. i want some power gain along with the insurance that my motor is safe.

 

ok, here's a thing, if you want an aftermarket air filter, K&N power kit, or just the filter can, which is they will increase horsepower.. and but a racing air box. which it gets more air to breath. K&N hasn't get dirty inside of the filter can. so, that's why they are popular.

in my 450R

i have K&N power kit, with racing air box which is gives me more horsepower and it has half of the cover that covers the box, and it sounds nice. and it will increase power gain.. i would go for K&N power kit wich is comes with the filter too