Nice work!

Will the 4.6 cams on the 4.4 need a tune?

I didnt know these motors have cracked connecting rods.

Interesting on the ring deposits, are the M62's prone to them? I was thinking of trying Valvoline Restore and Protect just because there is a lot of evidence they clean so well. No oil consumption on the 4.6 and it was spotless under the valve cover last time the gaskets was done though.

__________________
04 X5 3.0i auto
03 X5 4.6is