-Update 4/19/2021 - The other HPFP kicked the bucket, synopsis added to thread.
Thought I'd put this in here since it could help someone in the future. Had a HPFP die on my 2015 36k-mile 650i GC, correctly diagnosed it, then doubled my cost by seeking to have it replaced for free under warranty by the local dealer.
Rather than rehash, I'll just link to the thread wherein I spoke into a void:
https://www.bimmerfest.com/forums/sh....php?t=1377983