>
> Performance improvement will probably not be noticable, but you may notice
> less noise.
>
> Refitting the missing snorkel made a *huge* difference in interior noise
> on my diesel.  (Diesels have a similar snorkel setup, but in the left rear
> pillar instead of the right one.)  Now, a gas engine has a much less open
> intake tract than a diesel does, but it may still make a noticable
> difference.

I would never have guessed, but the snorkel makes a very noticeable
power difference on the diesel vans.  In my (former) 1983 ASI camper,
the snorkel made about a 5 MPH difference in top speed at full throttle
in high gear.  VW must have paid some attention to tuning the system.  I
couldn't say if that would also apply to the gas models.

Michael Snow