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E46 Engine Swaps
Replacing your motor? From direct replacements to more exoctic engines, if it's going under the hood of an E46 3 Series this is the forum to discuss it.

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Old 02-22-2017, 09:47 PM   #1
Ne70
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Join Date: Oct 2016
Location: Costa Rica
Posts: 67
My Ride: E46 323ci
Swap M52 to S54

Hello There'

I'm planing to swap my engine in my E46ci 323


currently I have the M52 engine

and I wanted to install the S54 (M3)

My main concern is that, mostly all the S54 in Ebay are just engine, trans, and harness, not any module upon request

my main question is: should I need all the S54 modules? (airbag, traction control, ABS, A/C, electrical, etc, etc)

or can I use my existing modules from the M52 and use the S54 engine?

any guidelines should be perfect at this point

Im planing to buy a MegaSkirt ECU
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Old 03-05-2017, 09:45 AM   #2
joevsamy
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Join Date: Jan 2017
Location: virgina
Posts: 4
My Ride: 2000 323ci
throttle body on your 323 is not the same.
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