twin air filters

[AtvRider21]

are twin air filters good for400exs i want more power and performance and i dont know wht to get i think i want twin or uni or kand n whats the best for power in 1 best 2nd and 3rd thanks

[flaneledholes]

Power: kand uni twinair
Protection: tie between uni and twinair then kandn

But I went to hill-climb where everything there was super modified and I saw more twinair on the dirtbikes than I did the kandn or uni(I think it is all personal preference until you get into big-bores really)blue

[AtvRider21]

does twin air add good noticable power tho thanks

[Dave400ex]

Unless you put holes in your Airbox Lid or take it off it won`t matter what Filter you run. The K&N only adds more Power if it can get more Air. I run a K&N and like it don`t have any problems with dirt and clean it all the time to make sure. If I was to get a Foam it would be a No Toil.