Quote:
Originally Posted by Anthony1s
N55 exhaust has one valve, S55 has two. They have the same connector, but different internals. Seems like he extended the wires to splice the extra S55 connector into the single N55 valve.
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Maybe we refer to different things , but the MPE of my former M2 featured two butterfly valves: one on each outer pipe (pipes #1 & #4):
Left - valve open:
Right - valve open:
