E46Fanatics - View Single Post - m54b30 vs m54b25
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Old 10-27-2009, 06:28 PM   #16
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Join Date: Jun 2008
Location: New York
Posts: 3,343
My Ride: not an E46
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...

2003 325xi 5MT
Jet Black, ZSP, ZPP, ZCW, OEM Xenon ^^RIP
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