hey guys just curious as to what you all would recommend for a 08 400ex for an after market air filter i have been look at the k&n and the uni filter but i would like some input on what you guys prefer to use
True K&N flows more air but in turn in also lets more through. Depending on what kind of riding you are doing I would go with UNI. If yu race and are on conditioned tracks where there is less dust, K&N is great.
I run a uni filter just because of the conditions I ride in. I ride in a real dusty area. the k&n flows better but it also lets more dirt by. I would rather have my motor breathing clean air. than have that half of horsepower. just my 2 cents.
with the uni filter should i only use the uni filter oil or can i use the PJ1 foam filter treatment PJ1 Foam Filter Treatment (Aerosol) my local honda dealer said to use the pj1 cleaner and oil so let me know what you think