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Hi guys, i have a euro 323.

Im planning on doing the m54 inlet swap and converting it to ms43. Why you ask, im bored and want to. Also want to get ms43 set up for future plans, whether they manifest or not is another subject.

Question is, if i swap the entire engine harness over, get the m54 throttle pedal and make a loom to connect it to the X6004 plug. Then swap in a b30 inlet and throttle body. Use the 323 return style fuel rail.

Get a ms43 DME, and flash it with a 2.5 ews delete software.

Would that be the basics of making it work?
 

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Here to serve y’all
2004 330Ci 85k miles
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That all sounds feasible, but quite a bit of work. Be sure to read all the MS42->MS43 swaps, particularly to see if other modules like ABS/DSC, cluster, etc., will be compatible.

It would be much easier if you kept MS42, which also has EWS delete.
 
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