E46Fanatics - View Single Post - M54 3.0 to 2.5 Swap Will it work
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Old 06-29-2019, 09:54 AM   #4
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Join Date: Jun 2019
Posts: 3
Originally Posted by armenh7 View Post
Yes, a 2.5 will swap in perfectly fine. You'll just need to flash the DME to the correct software. Since you have a 2004 and the donor car is 2001, there are some things you'll need to swap over. The valve cover is different, the coil packs are different, the intake air temperature sensor is moved to the maf sensor, and of course the maf sensor is different.

Thank you[emoji817]

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