Actually no, it doesn’t… unless you seal off the intake with a box to that snorkel. Thats why TOMS made a sealed box for that scoop (but it’s really expensive, so no one buys it) . And, even then it’s not really going to help much, if at all. And, I agree, it looks cleaner w/o it. I’m thinking about getting or atleast trying to find an SW20 this upcoming spring to go along with my AW11. I know a bit about SW20’s too.
Todd