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Posted by: Bear4570
I know a guy running a pair of K&Ns without an airbox with outerwear covers and he has had no water problems. Running one in an airbox should present no water problems and with the outerwear or a precharger the service life should not be any worse than the stock unit. The K&N will flow air better than the stock filter, but without an exhaust system or exhaust mod to move the air out of the engine quicker, probably not much of a power boost if any.
Posted by: rescuediver
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Originally posted by: Bear4570
I know a guy running a pair of K&Ns without an airbox with outerwear covers and he has had no water problems. Running one in an airbox should present no water problems and with the outerwear or a precharger the service life should not be any worse than the stock unit. The K&N will flow air better than the stock filter, but without an exhaust system or exhaust mod to move the air out of the engine quicker, probably not much of a power boost if any.
We run k&n's on our bikes. I even run one on our mojave that is a clamp on with one outerwear. It's been through creeks and ran in the rain without effecting the performance of the filter. Now, that doesn't mean you can take it into a deep mud hole or high creek/river. You still need to use common sense on where/when to ride.
Posted by: Cattywompus
Well I have one for my 05 400 and I haven't noticed a difference compared to stock, I would suggest buy a moose or UNI and 2 prechargers to cover them to help cut down dust. this way you can service one and let it dry and still ride using the other. I swap from KN to stock durning cleanings.
Posted by: Cattywompus
You too, No problem and good luck
Posted by: Hoopie
Im a big k&n fan but for the cats if you do mudding\water riding i would stick with the stock. they protect from the elements better with that thick foam they have. IMO
Posted by: 191145
Should I replace the stock air filter on my 06 AC 400 Auto with a K&N air filter? Would it be worth the $47.65 that Fox performance sells them for? Thanks for any feed back.
Posted by: 191145
Hoopie,Cattywompus,Bear4570,Rescuediver: Thanks alot for sharing your expertise with me in reguards to my K&N air filter question. I hope ya'all have a merry Christmas and a properious New Year.