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Is there any helpful person out there who could provide me with instructions / information of how to remove the OEM headers on E63 M6 (Or E60 M5, which i assume would be the same operation)

Some guidance would cut the trial and error time when going down the DIY route

So far I have removed the air boxes, released the expansion tank, and released the bolts of the manifold heat shields from above.
Next step is to hoist the car and start working from below.
Plastic cover removal, belly pan removal, steering collumn removal, but then??

My main concern is if there is an absolute need for oil pump removal?
Or if the headers can be dis assembled from the heads without any more components going out?

Any help is appreciated.

Thanks!