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Old 08-30-2013, 02:43 AM   #4
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Join Date: Aug 2009
Location: gross deutsches reich USA
Posts: 960
My Ride: 323i with S54
Originally Posted by TArse View Post

But I always ask myself, why this swap over a m50/s50 or m60?

To my understanding the m54 motors are really hard to tune if you ever plan on doing major modding.
M54B30 is an awesome engine. It has many more improvements over older engines, it is lighter, makes about the same amount of power. Electronics very very easy, easy to tune. It is the best
Siemens MS43 tuning master
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