how do u clean a 3" INTAKE AIR FILTER ? it's pretty dirty now
do i just water it down? or do i have to get the kits to clean it from an auto store?

 

if your talking about an aftermarket one, or as long as it isn't a foam one, go get a k&n filter recharge kit. I have used this kit many times. I have also used gas which i am not sure if it is recommended or not.

 

Recharge kit.

 

can you just use hot water and soak it. Then move it around in the water? Thats what i did once and the water was really dirty.