E46Fanatics - View Single Post - m54b30 vs m54b25
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Old 10-28-2009, 01:38 PM   #18
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Originally Posted by mujjuman View Post
I'm trying to swap in a M54B30 in place of my M54B25, would I or would I not need to swap the ECU as well?
I'm getting mixed answers between threads and different posts...

no need to swap the ecu....send your ECU to ess and they will get it to 3.0 specs for you... so that you can run 3.0 injectors and the 3.0 maf
-Azlan *I want to be like CD330*

Last edited by azzy989; 10-28-2009 at 01:46 PM.
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