BMW M Performance LSD for 335i and 435i. Pricing and Technical FAQ.

Versipellis · 04-16-2016, 07:06 PM

Is this something that can be ordered for PIA?

drexplode · 04-17-2016, 03:41 PM

Quote:

Originally Posted by Versipellis

Is this something that can be ordered for PIA?

I don't believe so. I looked into it for a m235i and genius told me that LSD was removed in Feb due to install time. You can buy it at the dealer.

Versipellis · 04-17-2016, 06:36 PM

Quote:

Originally Posted by drexplode

I don't believe so. I looked into it for a m235i and genius told me that LSD was removed in Feb due to install time. You can buy it at the dealer.

Sad. I'm actually surprised not more people on the forums have the MPerf LSDs, was trying to figure out if it was because it didn't look like a PIA item.

shivaswrath · 04-17-2016, 08:34 PM

Port installed yes,

F32Fleet · 04-29-2016, 10:11 PM

Quote:

Originally Posted by Versipellis

Sad. I'm actually surprised not more people on the forums have the MPerf LSDs, was trying to figure out if it was because it didn't look like a PIA item.

Simple answer. It's not a cosmetic (visual/auditory) modification and it's expensive.

shivaswrath · 04-30-2016, 12:02 PM

Quote:

Originally Posted by F32Fleet

Quote:

Originally Posted by Versipellis

Sad. I'm actually surprised not more people on the forums have the MPerf LSDs, was trying to figure out if it was because it didn't look like a PIA item.

Simple answer. It's not a cosmetic (visual/auditory) modification and it's expensive.

It transforms the handling on track. Really does.
Not necessarily needed on the street....

cryptocar · 05-01-2016, 04:48 PM

How many people with xDrive have gone for an LSD either M-Performance or Quafie? It's probably the next thing I'll spring for and have gotten little feedback from other xDrive owners. Anyone have a review or experience with it.

Gio72 · 05-13-2016, 07:26 AM

Quote:

Originally Posted by cryptocar

How many people with xDrive have gone for an LSD either M-Performance or Quafie? It's probably the next thing I'll spring for and have gotten little feedback from other xDrive owners. Anyone have a review or experience with it.

A friend of mine owns a 435i xdrive and installed the M Performance LSD (I think he was maybe the first, after Bmw did LSD available for xdrive) and he is super-happy with it!!!!
Really really satisfied! Now the handling is more similar to a RWD but with the grat traction of the AWD!

Feddersen · 05-13-2016, 08:54 AM

Sounds like a good combo

shivaswrath · 05-13-2016, 09:13 AM

Quote:

Originally Posted by Gio72

A friend of mine owns a 435i xdrive and installed the M Performance LSD (I think he was maybe the first, after Bmw did LSD available for xdrive) and he is super-happy with it!!!!
Really really satisfied! Now the handling is more similar to a RWD but with the grat traction of the AWD!

WOW, on an xDrive? I didn't think it was possible....

Polo08816 · 05-13-2016, 10:19 AM

Documents of Main group 33 from ISTA+ attached.

What type gear oil would the M Performance LSD use compared to the standard open rear differential?

Big Nodge · 05-14-2016, 09:39 AM

Quote:

Originally Posted by Gio72

A friend of mine owns a 435i xdrive and installed the M Performance LSD (I think he was maybe the first, after Bmw did LSD available for xdrive) and he is super-happy with it!!!!
Really really satisfied! Now the handling is more similar to a RWD but with the grat traction of the AWD!

That's great to hear. I've been really curious about this too but haven't been able to find much info yet. It's been hard to even determine with 100% certainty that the f30 m perf lsd is compatible with the xDrive.

F32Fleet · 05-15-2016, 07:29 PM

Quote:

Originally Posted by Polo08816

Documents of Main group 33 from ISTA+ attached.

What type gear oil would the M Performance LSD use compared to the standard open rear differential?

Castrol SAF-XJ aka Castrol Syntrax Limited Slip 75W 140

shivaswrath · 05-20-2016, 08:33 AM

Quote:

Originally Posted by Polo08816

Documents of Main group 33 from ISTA+ attached.

What type gear oil would the M Performance LSD use compared to the standard open rear differential?

BMW told me there is no need to change the oil (or even a way to change it) for this LSD.

Polo08816 · 05-20-2016, 09:34 AM

Quote:

Originally Posted by shivaswrath

BMW told me there is no need to change the oil (or even a way to change it) for this LSD.

You would have to extract it with a vaccuum pump. Or you may be able to open up the rear cover after removing it.

F32Fleet · 05-25-2016, 08:25 PM

Quote:

Originally Posted by shivaswrath

BMW told me there is no need to change the oil (or even a way to change it) for this LSD.

Contact Drexler.

They may suggest something like 4 yrs for occasional (2-3x/yr) track use.

Hint.

Polo08816 · 05-26-2016, 08:43 AM

Quote:

• 30% lockup on acceleration, 9% on deceleration, developed specifically for the F2X and F3X chassis for optimal traction and smooth locking and unlocking characteristics.

What's the relationship between lockup % and ramp angles? Do we have an estimate for the ramp angles that are being used in the MP LSD?

The follow-on questions would be what's a streetable lockup %? There seems to be a lot of posts in a variety of forums that say 40% is about the upper limit, but there's less consensus on lockup % during decel/coast.

Polo08816 · 05-28-2016, 12:10 PM

I'm wondering if anyone has done removing/installing the rear diff themselves and can comment on the special tools required for the job.

1. Does the exhaust system need to be removed in order to do swap out the rear diff? It seems like ISTA+ has you remove the complete exhaust system in order to disconnect the main drive shaft.

2. What tool (or alternative tool) did you use to get the left and right axles off? Pictures attached.

Polo08816 · 05-31-2016, 08:17 PM

Quote:

Originally Posted by Polo08816

I'm wondering if anyone has done removing/installing the rear diff themselves and can comment on the special tools required for the job.

1. Does the exhaust system need to be removed in order to do swap out the rear diff? It seems like ISTA+ has you remove the complete exhaust system in order to disconnect the main drive shaft.

2. What tool (or alternative tool) did you use to get the left and right axles off? Pictures attached.

Darkiedm4, I was wondering what tool you used in place of 33 5 120 in order to pull out the axles?

PeterPure · 05-31-2016, 11:31 PM

Quote:

Originally Posted by Polo08816

Quote:

Originally Posted by Polo08816

I'm wondering if anyone has done removing/installing the rear diff themselves and can comment on the special tools required for the job.

1. Does the exhaust system need to be removed in order to do swap out the rear diff? It seems like ISTA+ has you remove the complete exhaust system in order to disconnect the main drive shaft.

2. What tool (or alternative tool) did you use to get the left and right axles off? Pictures attached.

Darkiedm4, I was wondering what tool you used in place of 33 5 120 in order to pull out the axles?

I would have to ask my installer.

Polo08816 · 06-01-2016, 01:12 PM

Quote:

Originally Posted by Darkiedm4

I would have to ask my installer.

If you would, that would be great.

I'm just wondering if one or two pry bars would be sufficient.
https://www.ecstuning.com/Search/Sit...Bar/ES1899378/

The BMW 33 5 120 tool set costs about $750-800. Pretty expensive for what is basically a pry bar.

PeterPure · 06-01-2016, 01:34 PM

Quote:

Originally Posted by Polo08816

Quote:

Originally Posted by Darkiedm4

I would have to ask my installer.

If you would, that would be great.

I'm just wondering if one or two pry bars would be sufficient.
https://www.ecstuning.com/Search/Sit...Bar/ES1899378/

The BMW 33 5 120 tool set costs about $750-800. Pretty expensive for what is basically a pry bar.

I pass by installer tomorrow i will ask

04-16-2016, 07:06 PM	#111
Versipellis Captain 131 Rep 682 Posts Drives: '17 F36 440i xDrive M-Sport Join Date: Jan 2015 Location: Boston, MA iTrader: (0)	Is this something that can be ordered for PIA? __________________ 2017 440i Gran Coupe xDrive MPPSK M-Sport Estoril Blue II w/ Individual Golden Brown Full Merino & Fineline Anthracite Wood Track Handling + Premium + Cold Weather + Technology + Driver Assistance Packages
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04-17-2016, 08:34 PM	#114
shivaswrath Brigadier General 649 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	Port installed yes, __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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05-01-2016, 04:48 PM	#117
cryptocar Captain 497 Rep 902 Posts Drives: 13' F30 385xi VNV Speed Custom Join Date: Jul 2015 Location: Chicago, IL iTrader: (3) Garage List 2013 Mercedes SL63 ... [0.00] 2010 VW Tiguan 2.0 ... [0.00] 2015 Tesla P85D [0.00] 2014 Mercedes S63 AMG [0.00] 2007 Mercedes GL450 [0.00] 1967 Ford Mustang [0.00] 2013 BMW F30 335xi [0.00]	How many people with xDrive have gone for an LSD either M-Performance or Quafie? It's probably the next thing I'll spring for and have gotten little feedback from other xDrive owners. Anyone have a review or experience with it. __________________ 13' 335xi, ACF Tuned, ACF Stage 3 Turbo Kit (67mm),PDU PI, ACF Stage 4 LPFP, M-Perf Brakes, AEM CM10 Meth/Nitro, CG DR-1 + VS-1 3.5" Turboback, AFe S2 CAI+Ram Scoop, ER Chargepipe, Wagner EVOII Comp. FMIC, Stop-Tech SS Brake Lines, BMS Sport Oil Cooler Valve+Spacers F10mm R15mm, 19" Bridgestone Potenzas, KW EDC Coilovers, CF Seibon Hood + CSL trunk. Track:Pagid Race Pads, Stop-Tech Custom Pads Front+Rear Racing Tow Hooks
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05-13-2016, 08:54 AM	#119
Feddersen Lieutenant 451 Rep 469 Posts Drives: X1 xDrive25i Join Date: Jan 2015 Location: Denmark iTrader: (0)	Sounds like a good combo __________________ DD: F48 X1 xDrive25i '20 - https://f48.bimmerpost.com/forums/sh....php?t=1703083 For fun: F22 M240i '19 - https://www.2addicts.com/forums/show....php?t=1644646 Previous BMW: Fully loaded F30, 335i https://f30.bimmerpost.com/forums/sh....php?t=1681247
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05-28-2016, 12:10 PM	#128
Polo08816 Brigadier General 1610 Rep 3,947 Posts Drives: 2014 335i M Sport Join Date: Sep 2010 Location: MD iTrader: (0)	DIY tools question... I'm wondering if anyone has done removing/installing the rear diff themselves and can comment on the special tools required for the job. 1. Does the exhaust system need to be removed in order to do swap out the rear diff? It seems like ISTA+ has you remove the complete exhaust system in order to disconnect the main drive shaft. 2. What tool (or alternative tool) did you use to get the left and right axles off? Pictures attached. Attached Images
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