So anyone k&n theirs?

[spldart]

I pulled the air filter as I was doing a bunch of other work and ran it around a bit.
Don't worry. It had just rained and the particulates were out of the air.
I did notice, like every other bike I've owned, that it runs to lean sans air filter.
Especially part to full open throttle.
Anyone know how much jet up my be needed?
My last bike that got k&n'd up needed the main jet to go up 2 or 3 sizes.

Btw... These things sound a lot tougher with the intake opened up