M3/1M Subframe Advantages

mKilgore · 04-09-2020, 12:06 PM

I'm wondering what are the advantages of the M3/1M rear subframe are over the 135i subframe? Is the geometry better? Are there other performance advantages?

Let's assume that all of the suspension components/bushings are the same. If you swap out all of the links, arms, carriers, etc. to full spherical/adjustable, what advantages remain? Weight? Geometry? Track width?

amg6975 · 04-09-2020, 05:46 PM

The only real difference is you can use a factory LSD.

04-09-2020, 12:06 PM	#1
mKilgore Second Lieutenant 172 Rep 215 Posts Drives: F82 M4 Join Date: Aug 2017 Location: Nashville, TN iTrader: (1)	M3/1M Subframe Advantages I'm wondering what are the advantages of the M3/1M rear subframe are over the 135i subframe? Is the geometry better? Are there other performance advantages? Let's assume that all of the suspension components/bushings are the same. If you swap out all of the links, arms, carriers, etc. to full spherical/adjustable, what advantages remain? Weight? Geometry? Track width?
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04-09-2020, 05:46 PM	#2
amg6975 Captain 500 Rep 645 Posts Drives: '12 M1.5, '05 ZHP, '98 M3/4/5 Join Date: May 2017 Location: Rochester NY iTrader: (0)	The only real difference is you can use a factory LSD.
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