I have been looking into upgrading my 17’s intake. As I search around I see K&N and AEM have tubes and boxless filter kits for 16’ and 18’. I have also seen the SSD tubing as well but not as interested because I’m looking for a boxless filter as well. My question is would I be able to use to 16’ / 18’ kits on my 17’ crosstrek with little to no problem? Or would it be best to steer in the direction of the SSD tube and keep the box? Currently have a k&n filter but looking to upgrade the whole intake!