Don't listen to these guys with their silly crap that doesn't actually extract any power.

You need either:

http://www.cosworth.com/Default.aspx?id=1098026

or if you have some more development time...

http://prodrive.com/level4.html?id=29

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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]