carmudgeons.com - View Single Post - Converting an E46 325 automatic wagon to stick with S54 and LSD in 2020

Nick M3 · 06-07-2020, 07:47 AM

So, the answer today is that S54 swaps are very easy.

The Rogue wagon, IiRC, involved an M3 body kit, which is a much bigger issue.

The absolute easiest direct drop in answer is an M54B30, which is straight plug and play. Doesn’t even require any reflashing.

Ain the past, the issue with S54 swaps was that people had not cracked the ECU, so they were doing crazy shit like retrofitting E46 M3 chassis harnesses and modules. Now, you can just turn all that crap off and you can still get it to scan for OBDII inspection.

06-07-2020, 07:47 AM	#10
Nick M3 Relic Join Date: Oct 2003 Location: Bethesda, MD Posts: 12,458	So, the answer today is that S54 swaps are very easy. The Rogue wagon, IiRC, involved an M3 body kit, which is a much bigger issue. The absolute easiest direct drop in answer is an M54B30, which is straight plug and play. Doesn’t even require any reflashing. Ain the past, the issue with S54 swaps was that people had not cracked the ECU, so they were doing crazy shit like retrofitting E46 M3 chassis harnesses and modules. Now, you can just turn all that crap off and you can still get it to scan for OBDII inspection. __________________ 2011 M3 2006 Sierra 2500HD 4WD LBZ/Allison 2004 X5 3.0i 6MT 1995 M3 S50B32 1990 325is 1989 M3 S54B32 Hers: 1989 325iX 1996 911 Turbo