Rear subframe brace - 340xi

Dasky_spas · 12-18-2023, 03:12 PM

The two rear points mount to the subframe, right? I think those two bolts take a tremendous amount of tq.

sdbwisc · 12-18-2023, 04:18 PM

Quote:

Originally Posted by Dasky_spas

The two rear points mount to the subframe, right? I think those two bolts take a tremendous amount of tq.

Yup, now I do remember I did google the specs.

isenc2 · 12-20-2023, 10:23 PM

I recently installed Wavetrac LSD on my 340i xDrive. Really noticed the rear end wiggle a bit with the LSD. This mod finally tightened the rear end. Excellent mod to pair with my LSD. My review of the LSD was posted on the B58 section.

sdbwisc · 12-28-2023, 09:27 AM

Quote:

Originally Posted by isenc2

I recently installed Wavetrac LSD on my 340i xDrive. Really noticed the rear end wiggle a bit with the LSD. This mod finally tightened the rear end. Excellent mod to pair with my LSD. My review of the LSD was posted on the B58 section.

Not sure if I have LSD lol.

isenc2 · 12-28-2023, 04:34 PM

Quote:

Originally Posted by sdbwisc

Not sure if I have LSD lol.

Assuming you have a 2016 340i xdrive, same as my car, then you do not have a LSD. BMW never made a LSD that fits the xdrive LCI F30.

MooLard · 01-17-2024, 10:05 AM

I did some different rear suspension mods to my 435d GC including these poly subframe bushes https://strongflexuk.com/product/036...ush-kit-sport/
and an M140i rear anti-roll bar (because my pre-LCi car had a small diameter one) and poly bushed the ARB at the same time. https://strongflexuk.com/product/031...ar-bush-sport/
The ARB and bushes made a noticeable difference to me, car seems to stay more level, less sway and slightly lighter steering feel too.

sdbwisc · 01-17-2024, 10:22 AM

Quote:

Originally Posted by MooLard

I did some different rear suspension mods to my 435d GC including these poly subframe bushes https://strongflexuk.com/product/036...ush-kit-sport/
and an M140i rear anti-roll bar (because my pre-LCi car had a small diameter one) and poly bushed the ARB at the same time. https://strongflexuk.com/product/031...ar-bush-sport/
The ARB and bushes made a noticeable difference to me, car seems to stay more level, less sway and slightly lighter steering feel too.

I have been looking at the bushings too. Might do those. Been thinking of selling and getting a newer M4. Damn car addictions, lol.

12-18-2023, 03:12 PM	#23
Dasky_spas Lieutenant 141 Rep 525 Posts Drives: Bmw Join Date: Mar 2023 Location: NYC iTrader: (0)	The two rear points mount to the subframe, right? I think those two bolts take a tremendous amount of tq.
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12-20-2023, 10:23 PM	#25
isenc2 Second Lieutenant 147 Rep 237 Posts Drives: 340i xDrive Stage 1 Join Date: Dec 2020 Location: Arizona iTrader: (0) Garage List 2016 BMW 340i xDrive [10.00]	I recently installed Wavetrac LSD on my 340i xDrive. Really noticed the rear end wiggle a bit with the LSD. This mod finally tightened the rear end. Excellent mod to pair with my LSD. My review of the LSD was posted on the B58 section.
	Appreciate 1 sdbwisc66.00 Quote

01-17-2024, 10:05 AM	#28
MooLard Private First Class 28 Rep 151 Posts Drives: 335d touring Join Date: Dec 2015 Location: Bucks, UK iTrader: (0)	I did some different rear suspension mods to my 435d GC including these poly subframe bushes https://strongflexuk.com/product/036...ush-kit-sport/ and an M140i rear anti-roll bar (because my pre-LCi car had a small diameter one) and poly bushed the ARB at the same time. https://strongflexuk.com/product/031...ar-bush-sport/ The ARB and bushes made a noticeable difference to me, car seems to stay more level, less sway and slightly lighter steering feel too. __________________ 2016 435xd GC, MTC intercooler, centre and back box deletes, GKR stage 2 remap, methanol injection, H&R lowering springs. To do: wash it.
	Appreciate 1 sdbwisc66.00 Quote