F80/F82 suspension/brakes backwards compatibility catalogue thread

darkbmw · 01-26-2020, 06:54 PM

Fyi the m2 comp rears are 100% bolt on

s0ldats · 01-26-2020, 09:29 PM

Quote:

Originally Posted by darkbmw

Fyi the m2 comp rears are 100% bolt on

do they widen the track of e90?

tdott · 07-06-2020, 09:30 AM

Front struts should work.

Rear shocks will not, the threaded area isn't long enough to use the stock shock mounts. The f8x rear shock mounts are completely different.

JinAM · 10-31-2020, 01:32 AM

Quote:

Originally Posted by strokemycocktus

Per realoem calipers are heavier as well. Pads weigh about the same IIRC.

The calipers are actually not heavier. You need to really add in the weight of the bracket. As the F80 caliper does not need that bracket.

wyatth · 02-07-2021, 09:53 PM

Little bump: I suspect a hub is going out on my car and if confirmed, will be inclined to replace both. As I recall these F8X hubs were a direct swap and saved a little weight, so perhaps a "why not?" at this point. Just confirming the F8x front hubs (31207857506) are a direct replacement for the E9X part, with only the bolts/studs needing to be changed out as well.

derbo · 02-07-2021, 10:06 PM

Quote:

Originally Posted by wyatth

Little bump: I suspect a hub is going out on my car and if confirmed, will be inclined to replace both. As I recall these F8X hubs were a direct swap and saved a little weight, so perhaps a "why not?" at this point. Just confirming the F8x front hubs (31207857506) are a direct replacement for the E9X part, with only the bolts/studs needing to be changed out as well.

Yes. You will move to M14 size bolt/studs. Some rotor hats require drilling and I'm not sure if Brembo does.

FMLYSDN · 02-07-2021, 10:51 PM

Quote:

Originally Posted by wyatth

Little bump: I suspect a hub is going out on my car and if confirmed, will be inclined to replace both. As I recall these F8X hubs were a direct swap and saved a little weight, so perhaps a "why not?" at this point. Just confirming the F8x front hubs (31207857506) are a direct replacement for the E9X part, with only the bolts/studs needing to be changed out as well.

Do it

A97syclone · 04-10-2023, 11:51 AM

Any options for the Front of an E9X Xdrive?
I'd like to have "bolt on" 14mm front bearings/spindles to match the rear.
Bonus if the M4 brakes bolt on without any extra adapters/brackets.

01-26-2020, 06:54 PM	#23
darkbmw Second Lieutenant 101 Rep 276 Posts Drives: slow m3 Join Date: Jun 2012 Location: orlando fl iTrader: (0)	Fyi the m2 comp rears are 100% bolt on
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07-06-2020, 09:30 AM	#25
tdott Brigadier General 3938 Rep 3,980 Posts Drives: M3 Join Date: Nov 2010 Location: South FL / 6ix iTrader: (4)	Front struts should work. Rear shocks will not, the threaded area isn't long enough to use the stock shock mounts. The f8x rear shock mounts are completely different. __________________ N/A S65 Headers Before/After Dyno Results
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02-07-2021, 09:53 PM	#27
wyatth Colonel 3546 Rep 2,823 Posts Drives: E90 ZCP Join Date: Dec 2007 Location: Bay Area iTrader: (0)	Little bump: I suspect a hub is going out on my car and if confirmed, will be inclined to replace both. As I recall these F8X hubs were a direct swap and saved a little weight, so perhaps a "why not?" at this point. Just confirming the F8x front hubs (31207857506) are a direct replacement for the E9X part, with only the bolts/studs needing to be changed out as well.
	Appreciate 0 Quote

04-10-2023, 11:51 AM	#30
A97syclone Private 68 Rep 69 Posts Drives: '11 128i Join Date: Mar 2022 Location: Phoenix iTrader: (0)	Any options for the Front of an E9X Xdrive? I'd like to have "bolt on" 14mm front bearings/spindles to match the rear. Bonus if the M4 brakes bolt on without any extra adapters/brackets.
	Appreciate 0 Quote

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