550 ECU on 545?
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Joined: Jan 2014
Posts: 92
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From: ponder texas
My Ride: 2007 550i sport pkg 6MT
...and different intake manifold control systems, and different oxygen sensors, and different MAF sensor. It might even lose power with the 550i DME CM on it....
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Joined: Dec 2015
Posts: 367
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From: Boston, MA
My Ride: BMW 530xiT (E61)
Model Year: 2007
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Senior Members
Joined: Aug 2011
Posts: 259
Likes: 8
From: Baton Rouge, LA
My Ride: 2008 550i
Model Year: 2008
Yep, the 550 N62TU has a simpler, 2-stage intake manifold compared to the more complex infinitely-variable version on the 545. The secondary air ports were also deleted on the 550.
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