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      02-18-2020, 07:33 PM   #231
berns
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Drives: '07 E90 335i
Join Date: Feb 2013
Location: Los Angeles, CA

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The rear knuckles, and front knuckles are definitely different. Pickup points on both the knuckles and rear subframe are different too, for the M variant.

Wish I knew all of this at the start of my build, but not a huge deal. Sometime this year, if I keep the car, I'll do a full M rear subframe, diff, axles, hubs, knuckles, wheel bearings, and the front knuckles and bearings as well.

The geometry of the non-M stuff isn't ideal and I'm still fighting the car so much, and I think we all are at the limit. Look at all the spring rate threads, complaints of understeer, etc... Cars aren't supposed to be this hard to set up. The non-M e8x/e9x was never meant for the track.
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