RE: K&N Filters
Based on something I found on this (or another VW/Vanagon list) I went to a
K&N filter several years ago in my '90 Westy. Because of the comments in
the message above, based on hard data, I'm now having second thoughts.  So
a quick Google search finds this:
<http://www.nicoclub.com/archives/kn-vs-oem-filter.html>
Again, hard data, not hype or anecdotal evidence.  I think the K&N is
coming out (it's due for cleaning anyway) and I'm going back to the stock
filters.
And I'm sure there will be a bunch of comments on this both ways, waiting
for them.