Sure looks like too good to be true..

[Joshua Gary]

Holy cow!  Those things are 89 dollars!  JCwhitney has had those in there
catalog for over 10 years at 19.99$.

I used to work with a guy who sold magnetic household air filters and such
as a side job.  He also sold those "fuel savers"; he also wanted 90 dollars
for them too.  There are people who will pay 90 dollars for that too.

Here you go...
http://www.jcwhitney.com/product.jhtml;$sessionid$4CLCECYAAA1K0QSNDV1CFE0CJUOXKIV0?CATID=37028&_requestid=45724

It looks like they've gone up 2 dollars.  lol