The two i mentioned came with warranty. You do want to be prepared to install quickly though. I had over 3 mo. delay before i could install; chewed up a lot of the warranty time.

I haven't watched YouTube of head swap on M54, but considering the difficulty of getting to plug 6, i suppose it might be almost as bad as engine swap.

Having just done two engine swaps, a major benefit of full swap is getting to the old hoses etc. I swapped all my coolant hoses and power steering lines.


–awr–

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)