Are you perhaps looking for this link?
http://www.bmwworld.com/engines/nikasil.htm

"Sharkman540i" > wrote in message
.. .
>A month or so ago, someone posted a great link about Nikasil, I would like
>to have it again if anyone has it!
> It is not the koala mototsport one, that I have,
> THANKS!
> Greetings from Montreal
>