Thanks, HB.
After checking the renntech DIY post and reading the follow-up discussion, I was able to remove the blinds, cover and snorkle within 10 mins (and w/o breaking or scratching anything!
After a good run I think I have satisfied my curiosity. But the overall sound improvement from the BMC filter and PSE is already so good, that frankly
I did not really noticed a "night-and-day" sound difference after de-snorkling (although the intake note is certainly deeper after 4k rpm...).
Fortunately, the beauty of this mod is that it is also very easy (and free) to restore the initial configuration.
Thanks again.
Cheers,
Humberto-