> > Does anyone know what this is and how/if it works?
>
>
Here's a fascinating load of poo from the manufacturer "explaining" how it
works, followed by laughing rebuttals from the locals:
<http://tinyurl.com/2dybaf>

I can't say how this one works exactly, but usually these type of things
splice inline with the water temp sensor and make the engine run slightly
richer, giving you 2-3 more HP. A ten cent resistor is definitely not worth
$150.

--
John Bange
'90 Vanagon - "Geldsauger"