BMW M240i Wavetrac Differential Upgrade & Comparison to Quaife Differential (internals comparison!)

[@normandy1140]

Nice video! It really is interesting how BMW creates the M240i, with 368(!!) pounds of torque. And have NO limited slip diff installed. If you drive a Ford Focus, I get it, you don't need one. But for something that is obviously race inspired and appropriately tuned, and costing around $50k U.S, I just don't understand why it doesn't have one. The car already costs $50k. BMW could probably put a proper LSD on there at a manufacturer cost must cheaper then what aftermarket it. I personally feel that performance is much better with the LSD, and in spirited driving, its heck of a lot safer too.

[@RegalAutosport]

Thank you! BMW have to limit the performance somehow and this is one of the key ways, not forgetting that they do have a highly watered-down version of a Drexlar available as a 'M Performance LSD' - so they are probably going after the accessory sales here. 100% with you on the safety aspect

[@destruxandexploze2552]

Even the 370z base with sport package has a VLSD. For way cheaper and with less torque (less needed than this BMW) Kinda shitty for BMW on that part.

[@teemeaux3830]

The reason is money. More of it for them

[@chriskamen2152]

about to buy one of these from you guys to go with my CF driveshaft I ordered, what is your lead time normally?

[@RegalAutosport]

Awesome!! A member of our team will be able to assist you at regalautosport.com/contact-us

[@EACraftingGames]

So if I understand correctly wavetrac is basically Helical LSD but with Clutch LSD lock. So if You can have locked diff if you want some fun ?

[@RegalAutosport]

Not quite, Wavetrac has a device that prevents the problem that happens with all other ATBs. It does not lock, it can simply still bias in situations whereby other ATB LSDs would perform less, or not at all. In summary, you are getting an LSD that works like an LSD all of the time, rather than in certain conditions.

[@formalfears4892]

i seen someone in the us with a review but i’m confused do you guys ship to the Us?

[@RegalAutosport]

We do ship to the USA, get in touch!

[@AGM240i]

Wavetrac has always ARP bolts inside ?

[@RegalAutosport]

This Wavetrac uses ARP bolts

[@AGM240i]

@ and this one use ARP bolts too? Part number: 30.309.155WKFM1. Its for M240i with manual.

[@lambrosstamos4494]

Please, compare Wavetrac and OS Giken.

[@RegalAutosport]

Sure! All they need to do is send a diff, principle is the same as other plate diffs. Maybe we will have the opportunity to compete in the future!

[@bradengookey6877]

Will that same limited slip differential for that M240i fit and work in a 220i of the same generation

[@RegalAutosport]

Thanks for the comment, possibly but most likely not. You can find out more by providing your VIN to a Performance Specialist by using the contact information in the description

[@daysofgrace2934]

How’s it compare to the M Performance LSD?

[@RegalAutosport]

We will have a video coming out soon to compare!

[@hali1337]

7:17 5W-140? I think you mean 75W-140 GL-5

[@RegalAutosport]

Thanks for spotting the type, it would be Motul Competition 75w140

[@champion5545]

How foes the Wavetrac compare to the OEM M performance LSD?

[@RegalAutosport]

We will be doing a video on the internals comparison soon, people have been switching from the M-Performance to Wavetrac though, especially on higher output cars as its performance is a bit underwhelming

[@teemeaux3830]

Would this fit in my b48 430i?

[@RegalAutosport]

Whilst this specific one will not, we do have other differentials that will! Please contact a Performance Specialist using the below information: 📲 Messenger: m.me/regalautosport 📲 Whatsapp: api.whatsapp.com/send?phone=447464783476 📲 [phone] 📩 [e-mail]

[@mindaugasbaltutis7107]

I need one on my e92 320d with 466NM

[@RegalAutosport]

Let's make it happen! You can by contacting a Performance Specialist below: 📲 Messenger: m.me/regalautosport 📲 Whatsapp: api.whatsapp.com/send?phone=447464783476 📲 [phone] 📩 [e-mail]

[@NL540i]

But do they have one for the 540i G30?

[@RegalAutosport]

Send your VIN through to www.regalautosport.com/contact-us and we can check

[@Htownhitter]

How much do you think it cost to instal and by a wavetrac

[@RegalAutosport]

Depends on the make and model, for an estimate please contact a Performance Specialist using one of the below methods: 📲 Messenger: m.me/regalautosport 📲 Whatsapp: api.whatsapp.com/send?phone=447464783476 📲 [phone] 📩 [e-mail]

[@JonBecker81]

Where would the M Performance LSD fall into comparison between the quaife and wavetrac?

[@RegalAutosport]

The M Performance is a very 'watered down' version of a plate differential, it's locking force and preload is low, as well as needing to be routinely maintained to retain the friction of the friction material and preload reset. You used to install a plate diff because is had better no/low load performance vs. an ATB, like the Quaife but Wavetrac has since solved that issue with their patented design. So with the Wavetrac you get the low NVH and low service requirements of an ATB but without any sacrifice of low/no load performance. Hope that helps!

[@Chuoizz]

Where the F is the Quaife diff in this comparison?

[@RegalAutosport]

talking diffs from 1:25 onwards

[@trophy182]

So wavetrac give a lifetime warranty like quaife?