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bhartlage bhartlage is offline
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Posts: 3
Join Date: Oct 2017
Car: M550i
Default 11-26-2017, 03:04 PM

If I understand correctly, it sounds like the S63TU JB4 will be compatible with the N63TU2 engine in the M550i in the near future with a firmware update. When this is released for the M550i will it be a fully supported JB4 release that doesn't have a permanent CEL? I believe I read in another thread that the JB4 for the N63TU was placed into an unsupported release due to a full time CEL. I just want to validate that the N63TU2 engine in the M550i isn't in the same boat when using the S63TU JB4. I've been holding off on tuning my M550i in hopes of a fully supported JB4 so please advise.
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