I have a suppertrapp slip-on exhaust on my warrior, with no jetting, and no airbox mods. If I drill holes in the airbox lid, will I need to rejet? How many holes should I put and how big should they be? Will this make my air filter any more vulnerable to water, dust, trash, or anything?

 

Ok, well when i got my Alba pipe Kit they told me do drill three, one inch holes in the air box and yes you should rejet after all those pipe and air mods. I never seemed to get lots of junk in there it was fairly well protected by the seat on the warrior, if i went do drill holes again i would drill more holes than what alba told me to.....maybe even cut the air box in half.

 

increase flow??? check my pics!