What do you guys think of the Ram Flo, K & N, Unifilter etc style pod filters? Do you use them? Are they only good for sucking hot air or are they worthwhile when used with some cold air ducting?

I have just bought a 1200 ute and would like to fit one to the standard carbie with the view to also putting it on a Weber when funds permit. Am I able to use the same one or will I need to purchase a bigger one for the Weber?

For the people who have used these style of filters did you use a small filter for the rocker cover breather pipe?

Thanks and sorry for so many questions.
Matty