Skip to product information
1 of 2
Wavetrac - 30.309.187WK

Wavetrac Install Kit for BMW E8X 135i DCT r=2.56

Regular price
£720.00 inc. VAT
(£600.00 ex. VAT)
Pre-Order Now!
Regular price Sale price £600.00 GBP
Sale Sold out
Since March, 2007 production, BMW has fitted rear axles where the ring gear is welded to the differential carrier. Prior to ordering, please send the last 7 digits of ...
Payment Icons
“Got my wavetrac fitted on at the start of the week took it to Cadwell on Wednesday to test it out and the thing is insanely good. From the initial enquiry through to fitting staff where on hand to help with any questions”
Andrew Macdonald
verified badge Verified purchase

Product Description

Since March, 2007 production, BMW has fitted rear axles where the ring gear is welded to the differential carrier. Prior to ordering, please send the last 7 digits of your VIN, vehicle details and transmission type to sales@wavetrac.eu so we can identify the correct differential and installation kit.  

Our Install Kits, combined with precision machine work, allow fitment of a Wavetrac® differential in late-model BMW rear axles where the ring gear is factory welded to the standard differential.

Upon receipt of a customer’s differential/ring gear assembly, the ring gear is separated from the stock carrier using CNC equipment. The ring gear is then machined, drilled and threaded to allow bolt mounting to a new Wavetrac® differential.

We then return to the customer:

• Wavetrac® Differential
• Customer’s machined ring gear
• Precision-ground spacer ring (where required)
• Set (10) of custom, high strength ARP® ring gear bolts

For the best possible performance, disassembly of the stock axle, and fitment of the Wavetrac and Install Kit should be performed by Regal Autosport. This ensures that the condition of the axle can be assessed before modifications are performed, and that the re-assembly is done professionally - ensuring correct gear backlash and bearing end play.

Important Note: A Wavetrac Differential must be purchased separately, this is only for you to send your case to us to installed a separately purchased Wavetrac Differential into and send back to you for installation. 

Shipping Information

Same-day shipping for in-stock items when ordered before 2PM. UK delivery via DPD next day and European & Rest of World deliveries are carried out by DHL. 

Returns & Guarantee

Lifetime, transferable limited warranty on Wavetrac Differentials. 14-day no quibble returns. See our warranty & returns pages for more information. 

0 Reviews

fast delivery, amazing service
star_rating

fast delivery, amazing service

“Had a Wavetrac in my MK5 Golf, Alpina B10 and Porsche Cayman S. Just about to fit one to my BMW M3 E92 and will more than likely continue to fit one to every one of my cars. Track day performance is incredible, especially in the wet or on tight tracks. Excellent on my daily Alpina too, rain, ice and snow - it's an all weather machine despite being an automatic BMW!”
RYAN STEWART
verified badge Verified purchase

frequently asked questions

 What oil should I use?

The oil you use is important. Not only for its lubrication but compatibility with the Wavetrac differential.

This means that if you use an oil which has additives that are for plate differentials which exist to reduce noises like clunking, chattering and smooth engagement - this will reduce the performance, reliability and invalidate the warranty of the Wavetrac.

The only aftermarket oil we know and recommend is the MOTUL oils which we list on our website and are available globally. The reason we do this is because we know they are compatible with the Wavetrac differential and you will have no issues. If you use different oils, there is a risk that they may cause issues.

If your gearbox came with an open or gear differential from the factory, in most cases you can use this oil.

If you are unsure, please contact us and we will happily guide you.

 Is this Wavetrac in-stock?

We keep 100s of Wavetrac differentials in-stock at any one time. If you urgently require a product please message the team prior to ordering to confirm stock availability.

Is this differential plug and play?

Whilst many differentials are ‘plug and play’ you will at a minimum require the factory backlash and bearing preload to be measured prior to removing the factory differential, then once the Wavetrac is installed to measure and adjust if required. This is normal practice when installing differentials and gearbox components.

As well as this on some applications further modifications are required to install the Wavetrac, if this is required then this is usually listed on the product page.

Can I install this differential myself?

Due to the complexity of gearbox or axle removal from a vehicle and then differential installation we always recommend a professional and experienced technician carry out the differential install.

This work often requires specialist tools, equipment, services, consumables and training which aren’t always freely available.

We offer an installation service at our Southampton facility whereby you can either deliver the whole vehicle, gearbox or axle only to us for the installation to be carried out, as well as having specialists in various make and models throughout Europe we can guide you to.

Do I require any other parts to install?

Typically you will require new consumables or one-time use items such as seals, bearings, bolts and other consumable items. If you are unsure of what you require, please contact us and we will provide you with these parts at an additional cost.

Do I require any specialist tools to install?

Whilst the majority of the installation can be carried out with regular tools, specialist tools are usually required to measure bearing preload, backlash and to carry out modifications when required.

Is the Wavetrac differential a plate differential?

No. It is an ‘automatic-torque-biassing’ or helical gear and pinion differential.

What are the service requirements of the Wavetrac?

There are no service requirements for the Wavetrac.

However, there are lots of parts in the gearbox other than the Wavetrac. If you are using your vehicle in situations such as motorsport (track, drag strip or off-road) we would recommend checking the oil quality over time to ensure it is providing optimal lubrication and for debris.

What percentage does the Wavetrac lock?

The Wavetrac is not a locking differential, therefore we do not provide this information.

What is the warranty on the Wavetrac differential?

The warranty is ‘lifetime transferable’, the full information of which can be found here: https://wavetrac.eu/pages/wavetrac-warranty

For any suspected warranty or suspected problems with the Wavetrac the first step is to fill out the RMA form here and we will contact you: https://wavetrac.eu/pages/product-returns
star_rating
4.8 based on 12 reviews

Wavetrac Install Kit for BMW E8X 135i DCT r=2.56

Payment Icons

BMW E92 M3

Wavetrac ATB LSD 

BMW E92 M3

Wavetrac ATB LSD 

BMW E92 M3

Wavetrac ATB LSD