k&n power up kits

[trxex]

i was wondering if it was worth it to get a k&n jet kit.i am going to richen up my bone stock quad a tad .but maybe i should get a jet kit.what comes in the kit? what size jets ,main,pilots.,ect,dyno charts??:huh

[jay's 300]

I don't know what all sizes come in the kit, but a buddy of mine put it on his 400 and he said it helped alot. Then he added a T-4 pipe and made it alot better.

[trailburner]

Yes, get the jet kit with a K&N filter. I noticed a deference with the jet kit.[reved quicker] the derections that come with the jet kit are pretty much spot on. the only thing i did deferent was insted of a 170main i went with a 165 runs perfect..oh yea run with air box lid off if possible.400's love to breath..