im a noob when it comes to engine part..i feel dumb to ask these questions but i have the jwt popcharger and ztube set up..can someone tell me about how many mile before i change the fiter? and do i need to buy a new one or i can clean it myself? thanks for the help

 

Depends on the filter. If its a cheaper one that get replaced, Id replace it. Otherwise you can clean it - K&N air filter cleaner or Simple Green (spray and rinse). Let all the water drain/dry for a day and then spray with K&N filter oil.

I would recommend every 10k miles. Earlier if it is dirty.