A dumb ?

[euroazfck]

Any 1 runing k&n fIlter on stock exhoust?can u tell if any thing changed after dropping it in??

[biketsai]

Please search, it has been covered many times on this forum across all models.

Pretty much there is no change, and you risk the K&N oil dropping onto your Maf.
Plus, there is no such thing as a K&N Filter on the exhaust system, intake system yes

[euroazfck]

My bad and yes I ment k&n filter in an air box not on exhoust... Lol

[kf3506]

didn't notice any difference with mine.

[schmally]

I gained a good +12 GTFO HP.

[Polski]

Dont do it unless you have a heat shield because you're going to be sucking in heat = loss of power.
But on the bright side, you will hear the DV better

[xRAYx]

Aren't you suppose to put air filters on your muffler tips..? Help keep the earth clean?