I wish I knew about the kit. I replaced my vanos when I did the chain guides. I would have saved $1100 for the two vanos.
Very comprehensive DIY you found.

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4.8is 2004 imola red
4.8is 2005 Black on Black - DINAN/2 sold
4.4 2004 X5
2003 330xi
2008 328xi - sold
4.4 2000 X5 - sold