[ska///235i]

Originally Posted by Bhme

100% lock!!!!

Please lay out your facts for the OP or you're not helping no one

[Bion_]

Originally Posted by Pave Dew

I have Quaife from Birds and it's great.

How was the process of getting in? Did you have to make an appointment months out or was it shortly after you getting their information to them were they able to get you in? How long did it take?
I am really interested in going this route.

[F30form]

I think you all need to read this thread before making any assumptions about the super locking quaife diff.

http://www.m3post.com/forums/showthread.php?t=788992

[Bee Pee]

Bion

Birds had Quaife internals in stock so was able to book it in in less than 1 week. Cars was with Birds for 2 days but had springs and arbs fitted at the same time.

F30form - 2nd BMW I have had a Quaife installed on. Transforms the cars IMHO even on the road. Cars used as DD, dad's taxi and occasional trackday duties.

[Bion_]

Originally Posted by Pave Dew

Bion

Birds had Quaife internals in stock so was able to book it in in less than 1 week. Cars was with Birds for 2 days but had springs and arbs fitted at the same time.

F30form - 2nd BMW I have had a Quaife installed on. Transforms the cars IMHO even on the road. Cars used as DD, dad's taxi and occasional trackday duties.

I am going with Quaife at Birds. Seems cheaper and they said it was a 3 hour turn around. I am just getting the LSD. I have a lot of bolt ons coming as well including the GT Haus Meisterschaft EV controlled exhaust. Pretty excited. I don't know how close they are to Cambridge, but that's where I'm based out of sort of (Mildenhall).

[Bee Pee]

Bion

Birds are based in Iver, near Slough.

Good choice, you won't regret it !

PD

[ORIGIN M.]

Warranty to hell what in the world would you be voiding for adding a LSD. Who cares. Quaife has a lifetime warranty that is best in the industry.

[Killramos]

Originally Posted by red-sauerkraut

Warranty to hell what in the world would you be voiding for adding a LSD. Who cares. Quaife has a lifetime warranty that is best in the industry.

Failed lsd couple easily screw up many things with your drivetrain. I could see bmw voiding transmission etc based in aftermarket lsd because you just can't prove the lsd didn't cause the problem.

Sure Quaife will replace their unit. But I doubt they will cover the rest of your drivetrain in the event of a major failure.

If you don't care about warranties buy an e46 m3

[ORIGIN M.]

Originally Posted by Killramos

Failed lsd couple easily screw up many things with your drivetrain. I could see bmw voiding transmission etc based in aftermarket lsd because you just can't prove the lsd didn't cause the problem.

Sure Quaife will replace their unit. But I doubt they will cover the rest of your drivetrain in the event of a major failure.

If you don't care about warranties buy an e46 m3

Seriously you don't have to prove anything and neither do I !

BMW will not even know it's installed back there.

BMW has to know and prove it caused any other parts to fail.

http://en.m.wikipedia.org/wiki/Magnu...s_Warranty_Act" rel="nofollow" target="_blank">http://<a href="http://en.m.wikipedi...rranty_Act</a>" rel="nofollow" target="_blank">http://<a href="http://<a href="http...ty_Act</a></a>

[shivaswrath]

Originally Posted by hoppy6698

This. #1 reason I went with the MP LSD. Plus I got it for about $3200 installed at port. That and the BMW warranty for it. Not sure if I will ever race it, but I have heard there are SCC restrictions for some modifications not done by the manufacturers (dealers don't count).

M Perf works out $200 cheaper if you don't port install, and sell the OEM open diff as a core.

All in it cost me $2400 for the M performance including tax/install/etc.

My 100k warranty is too precious .

[ir_fuel]

And who is going to buy an OEM open diff from you?

[mteele]

Originally Posted by ir_fuel

And who is going to buy an OEM open diff from you?

I was fortunate...sold mine for $500

[stylinexpat]

I had a custom built LSD installed on 3 of my BMW's and in my opinion the quality and make of the LSD is by far better than Quaife or others I have seen out there. This guy charges more but he custom builds each one.

[wanganstyle]

I have purchased the BMW m-performance LSD unit; its a complete brand new unit - no core charge involved - had a former M3 with a gear type differential; the clutch type differential seems to fit the handling personality of the BMW better than gear type.

I would suggest purchasing the BMW M-performance unit as BMW has tuned the handling of the LSD unit to match the 2 series perfectly; BMW traditionally always ships performance cars with Clutch type LSD units.

Quaife units are very high quality but they only sell the differential; you would need it installed into the original open differential that came in the car.

Gear-type differential units are great for AWD and front drive cars; they are OK for rwd cars but when BMW puts a clutch type differential into EVERY //M car and supplies it as a factory OEM option for the M235 its pretty obvious what BMW thinks is the best.

[hoppy6698]

Originally Posted by wanganstyle

... and supplies it as a factory OEM option for the M235 its pretty obvious what BMW thinks is the best.

MP LSD is port install or dealer install only. It still is not a factory OEM option, even if configured that way online.

[wanganstyle]

Originally Posted by hoppy6698

MP LSD is port install or dealer install only. It still is not a factory OEM option, even if configured that way online.

sorry for not being technical enough.

the part is in the BMW parts catalog @ my local BMW dealer parts counter.

this is OEM enough for me; if I wanted a BMW with a factory (Germany) installed LSD unit I would have purchased a M4.

I'm not sure why people have failed to notice the STICKY in this section of the message board:

http://www.2addicts.com/forums/showthread.php?t=982939

[Bee Pee]

Gents

I went to a babybmw mini meet yesterday in UK in wet and rainy conditions on country roads or not on a circuit.

http://www.babybmw.net/forum/viewtopic.php?f=74&t=73906

Attached thread is from UK forum. My comment on 2nd page re Lots of fun and games in terms of traction for some. "Tweeny" was following me for the most of time yesterday.

My car has jb4 stg2 with map6 engaged despite the sh!te conditions and thanks to my Quaife, I had no traction issues at all.

BP

[chaddy74]

I have had the Quaife for over a year now also !! Best mod ever completly transforms the car !!

Originally Posted by Bee Pee

Gents

I went to a babybmw mini meet yesterday in UK in wet and rainy conditions on country roads or not on a circuit.

http://www.babybmw.net/forum/viewtopic.php?f=74&t=73906

Attached thread is from UK forum. My comment on 2nd page re Lots of fun and games in terms of traction for some. "Tweeny" was following me for the most of time yesterday.

My car has jb4 stg2 with map6 engaged despite the sh!te conditions and thanks to my Quaife, I had no traction issues at all.

BP

[paddy335]

Originally Posted by Bee Pee

I have Quaife from Birds and it's great.

I had the Quaife from Birds on my 335i (ah the memories) and it was fantastic. Best single bang for your buck investment by far on powerful rear drive cars IMO.

(I also had the ARB's and retuned Bilstein suspension from Birds - what a package. Turned that car into a cross-country weapon. Will be doing the same on the 140i).

D'oh... the moment you realise you replied to a 2 year old post lol

[Bee Pee]

Paddy,

Don't worry fella about the late reply.

I had Birds B3s package on my e91 335i too. With non RFT, M3 subframe bushes at the rear and M3 LCAs and TS at the front the car rode and handled superbly.

My M135i has had nearly full birds all but dampers as I'm on adaptive. Car foibles gone and gets down the road very well indeed !

[leeadam]

Originally Posted by Bion_

The Quaife price is for it installed, and the M LSD I believe is just the LSD itself without installation. BMW installing it would probably rape me with prices as I live in England and the British Pound is brutal. Is the M LSD better than Quaife?

not the same car I admit, but 4 years ago a mate who worked for a well know tuning company had a 335 e92 running around the 400bhp mark, he had the quaife diff and raved about it, and abused it hard for 30k miles before selling car

[Polo08816]

Originally Posted by mteele

Installing either by yourself will be very difficult. Even the M Performance, which is a complete unit, requires some special BMW service tools to complete. I know because I had planned on installing it myself till I found this out over the weekend.

The only special tool that BMW specifies is what is essentially a pry bar. I asked for a quote for that tool and they said ~$800. LOL.

...for a glorified pry bar.