Yes, I'm sure it is the same thing, but I was hoping for confirmation that was its true purpose. If that poster is still running 9 years later without it, then it must be OK to do without it. I had contacted my dealer and of course they were not familiar with it. I'm not sure how mine broke, but it might be a good thing for people to check their own, since it left screws and broken plastic rattling around in the air cleaner box, post filter. Luckily there is a grille on the intake.