Description
Wavetrac LSD differential – bolt-on unit for BMW
Wavetrac differential as a bolt-on ready to install unit – BMW F20 F21 M135i M140i models (OEM unit 33107599311 with 3.08 Final Drive )
When it comes to BMW, quoting many of our customers the LSD diff should be the first, and most important upgrade of them all. Improvement in traction and overall driveability is undeniable. Better control, better traction.
Typically the diff used in BMW has been one of the known Torsen-type locks such as Quaife ATB or Wavetrac, which work nicely, quietly and are compatible with oem DSC systems. Wavetrac offers the most modern technology and reliable action, which makes it the choice of our customers time after time.
Ready to install – bolt in place and return your oem core
This unit is sold as a pre-installed unit, just bolt it in place, add differential oil and you’re good to hit the road or track. Original differential will be returned to Wavetrac, where it works as a core for next Wavetrac unit to come.
- INSTALLED: For our customers in Finland, we sell these units installed at our customs shop at Vantaa. Bring your car over, and leave with a brand new diff in place. Our team will contact you to schedule an appointment.
- DELIVERED: We will deliver the new unit, and pick-up your old one with DHL courier. Easy and safe!
Technology, how Wavetrac works?
Wavetrac has long been the #1 choice of our customers, being the latest generation of technology in it’s category. Wavetrac uses Torsen-principle with added features such as the patented design preventing the so called zero-friction issue where LSD wouldn’t engage if other wheel doesn’t have any friction. In Wavetrac this has been taken care of.
- Lifetime warranty, basically unbreakable.
- Ready to install unit with new bearings and seals, built to Wavetrac specs.
- Famous Wavetrac mechanism to ensure a proper operation under all circumstances
- Quiet and unnoticeable in every day driving
- Compatible with OEM DSC systems
How Wavetrac works, video:
Wavetrac conversion, video:
Compatible models with 3.08 Final Drive, SKU 33107599311 :
1′ F20, M135i, 5 doors, N55, EUR, (1B71) : Rear-axle-drive
1′ F20, M135i, 5 doors, N55, EUR, (1B72) : Rear-axle-drive
1′ F20 LCI, M135i, 5 doors, N55, EUR, (1V11) : Rear-axle-drive
1′ F20 LCI, M135i, 5 doors, N55, EUR, (1V12) : Rear-axle-drive
1′ F20 LCI, M140i, 5 doors, B58, EUR, (1S91) : Rear-axle-drive
1′ F20 LCI, M140i, 5 doors, B58, EUR, (1S92) : Rear-axle-drive
1′ F21, M135i, 3 doors, N55, EUR, (1N71) : Rear-axle-drive
1′ F21, M135i, 3 doors, N55, EUR, (1N72) : Rear-axle-drive
1′ F21 LCI, M135i, 3 doors, N55, EUR, (1Y71) : Rear-axle-drive
1′ F21 LCI, M135i, 3 doors, N55, EUR, (1Y72) : Rear-axle-drive
1′ F21 LCI, M140i, 3 doors, B58, EUR, (1W91) : Rear-axle-drive
1′ F21 LCI, M140i, 3 doors, B58, EUR, (1W92) : Rear-axle-drive
Why the whole unit, can’t I build it myself?
For the last decade and more, BMW has been using a weld-on type diff, which you cannot disassemble simply bu unscrewing the bolts and fitting a new unit. Instead installing a LSD in these models needs skilled machining job, where the ring gear will be separated from OEM unit, modified, and fitted with your Wavetrac unit with reinforced ARP bolts. This conversion is often rather expensive, and not something every machining shop is willing to do at all.
Ready built unit is an easy choice, you’ll be happy to know your diff has been built by Wavetrac with accurate tolerances, offering laid-back kilometres for the future.
Is this product right for my car?
In case you have any doubt, our team is happy to help you out. Send us a message with your car VIN chassis number, and we’ll sort it out. Alternatively, add your VIN number in shopping cart notes and we’ll double check when processing your order.
Delivery time
These units are exchange parts, meaning that new units are built in the cores that have been returned from our customers. At any given moment there’s only so many units on the move, which leaves a risk of delays in case the return shipments would be delayed. Typical delivery time is between 1 to 3 weeks, should any excessive delays be expected – our team would contact you regarding your order.
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