From what i understand, the snorkel acts like a tuned port in a speaker cabinet allowing a predetermined amount of air in that matches the exaust in order to get the best performance with the jetting and exaust as the bike comes stock. If true, this would mean removing it would be detremental to performance. Some people seem to say it DOES help, tho others say performance was degraded which would tend to confirm the port theory. True or not, i dunno, but it does make sense. Possibly those who say it helped also rejetted and those who found a loss of performance didn't rejet. Just an observation, i'm only relaying what i've read here and elsewhere.
