[mikeysosa]

Has anyone tried Quaife, Wavetrac, or MFactory? I would love to get the OEM BMW LSD, but if I could save money on an equal or better product, that would be nice. Has anyone tried these? Does anyone know if they are as quality as the OEM?

[ngl]

Tbh I think the OEM one is the least quality, hence even they don't use it on their factory race cars.

I have a Quaife for 4 years now and I am very happy with how it transformed the car. Can't compare it to Wavetrac or Mfactory because I never had one.

I chose the Quaife because it is clutch free so there are no wearing parts, it is a install & forget part. I only change the oil every 1 or 2 years depending on how many trackdays I do.

Quaife is also a very reputable brand with a long history in motorsport and also comes as OEM on other car brands.

[WolfGTI]

I have the Quaife in my M240i for a little over 2 years now - zero complaints. I also chose it for less maintenance and the fact that my car is street driven for 99% of the time. Plus I have had Quaife LSD's in other cars and had zero issues.

[dradernh]

Originally Posted by ngl

I chose the Quaife because it is clutch free so there are no wearing parts, it is a install & forget part.

Originally Posted by WolfGTI

I have the Quaife in my M240i for a little over 2 years now - zero complaints. I also chose it for less maintenance and the fact that my car is street driven for 99% of the time.

^^ This.

Same reason I went with the Wavetrac. Plus, when I asked Dan at Diffsonline what he would recommend for my street/track use, he said Wavetrac. That was all I needed to hear as I was already pretty sure the Wavetrac was what I wanted.

[Sonertial]

Also installed a Quaife, M240i.

It totally changed the way the car behaves, for the better.

I do have some complaints, not about the diff itself, but their installation method. Their seller, Birds in the UK use second hand exchange diff housings, so be very careful to look it over before installation..

I my case there is almost imperceptible oil seepage from the right hand drive seal, caused, I assume, by the fact that the seal seat was rusty. The installers did replace the seal, but it's still leaking. I was a stupid enough to accept the diff housing, even though I saw rust on the axel entry points. I did not feel qualified to have an opinion about it at the time, but I feel pretty bummed that the brand new housing I traded in got replaced by something which is rusting away at a much faster rate that the rest of the car. I just do the best I can to keep it under control, and focus on the car performance.

[HP Autosport]

You can't go wrong with either a Wavetrac or Quaife. Both will likely last as long as your car if you change the gear oil on a regular basis. Unless your type of driving is mostly track, drift or drag a gear type LSD is the way go go.

PM us if you have any specific questions.

[NISFAN]

Originally Posted by Sonertial

Also installed a Quaife, M240i.

It totally changed the way the car behaves, for the better.

I do have some complaints, not about the diff itself, but their installation method. Their seller, Birds in the UK use second hand exchange diff housings, so be very careful to look it over before installation..

I my case there is almost imperceptible oil seepage from the right hand drive seal, caused, I assume, by the fact that the seal seat was rusty. The installers did replace the seal, but it's still leaking. I was a stupid enough to accept the diff housing, even though I saw rust on the axel entry points. I did not feel qualified to have an opinion about it at the time, but I feel pretty bummed that the brand new housing I traded in got replaced by something which is rusting away at a much faster rate that the rest of the car. I just do the best I can to keep it under control, and focus on the car performance.

I have an alternative theory.

Bird's supply non OEM seals. They just don't fit as tight as the genuine BMW parts.

As for rust, the only part that will rust is the visible internal bore. The seal will not let moisture in to rust the important sealing bit.

[NISFAN]

Quaife diff here too (well ex car now). Fantastic contraption. Better than the M diff in my M2C.

[Lingling]

Originally Posted by ngl

Tbh I think the OEM one is the least quality, hence even they don't use it on their factory race cars.

I have a Quaife for 4 years now and I am very happy with how it transformed the car. Can't compare it to Wavetrac or Mfactory because I never had one.

I chose the Quaife because it is clutch free so there are no wearing parts, it is a install & forget part. I only change the oil every 1 or 2 years depending on how many trackdays I do.

Quaife is also a very reputable brand with a long history in motorsport and also comes as OEM on other car brands.

Hate to revive an old thread but I've been looking into LSD for my m235 for a while now. How much did it all cost for you to get a Quaife LSD? And where from?

[SpencerC_6MT]

Originally Posted by Lingling

Hate to revive an old thread but I've been looking into LSD for my m235 for a while now. How much did it all cost for you to get a Quaife LSD? And where from?

I would suggest looking at a Wavetrac instead. I got mine from Diffsonline, and when asking Dan why he charges $200 more for a Quaife than Wavetrac, he simply said because the parts are more expensive. If a diff builder can't give me a tangible reason to give him $200 more, I would assume he only bothers offering it for people who already have a history/trust with the brand.

All in, my part from Diffsonline was very expensive. It used to be significantly less expensive, but of course, everything has gotten pricier in the past couple years. The "base price" for an F22 diff is $1349. The least expensive limited-slip option, Wavetrac, is $1500. Quaife is $1700. The least expensive price all-in-all is $2849 without shipping. I opted for a 3.46 gear ratio in place of stock 3.08 (+$1000), a magnetic drain plug (+$35) and a 2 fills of 75W-110 Red Line diff oil (+$100). I was in about $4000 without shipping. The core charge brings that up to about $1000, but that's fully refunded if you return your old diff. Shipping was about $100 each way, so call it $4200 pre-install.

My shop quoted me 4 hours of labor for install, but actually had to keep it overnight as they didn't expect how involved it would be. According to my shop, they had to disconnect the entire rear suspension assembly to get to the rear end, which they weren't expecting. I believe they upped me to 6 hours of labor, which was pretty generous considering it was probably more. Grand total, getting the diff installed was a touch under $5000. If you do everything as cheap as possible, without the gear ratio change and DIY the labor, you could be in for less than $3500.

[JMcLellan]

Had the M Perf LSD installed in my m240i in June this year. The part was 2280 shipped from a BMW parts site. My local go-to shop did the install for $750. So $3030 all in, no core charge process. Then I paid $160 for a fluid change about 1500 miles after install. My only complaint is that I have a stock open diff in my garage that I'm not sure what to do with.

[HP Autosport]

Originally Posted by JMcLellan

Had the M Perf LSD installed in my m240i in June this year. The part was 2280 shipped from a BMW parts site. My local go-to shop did the install for $750. So $3030 all in, no core charge process. Then I paid $160 for a fluid change about 1500 miles after install. My only complaint is that I have a stock open diff in my garage that I'm not sure what to do with.

Sell it on eBay.