2008 CAI install question

[t.fader]

Been searching lots and notice alot of people do intakes.. but people never ask enough questions.. i want to buy a CAI off ebay for 77$ from chromeintakes, as this person in the pics did, and i notice on the install he left the filter open.. he never said if he replaced the splash guard or not.. so i am skeptical on doing it and leaving my filter open for water and depris (i live in canada so it snows alot too so slush is a HUGE worry) does anybody have proper install pics and an explanation for a first time owner/huge newbie!!! thanks.. and also any suggestions or ideas?
btw, it is a 2008 aveo5 ls

thanks!