I was looking for a pre filter to go over the outer foam air intake. Seems to clogg up and make my 07 summit starve for air in deep powder. I have a 09 summit also and it comes with a Pre filter works awesome keeping snow from clogging. I found Outerwearsracing.com and they make a pre filter for the rev chassis part # 20-1633 comes in colors too. works great!
