Wavetrac BMW M135i/M140i/M235i/M240i ABT LSD Built Differential (F20/F21/F22/F23)

Wavetrac ABT LSD Built Differential for the BMW F Series M135i, M140i, M235i & M240i is an essential modification that dramatically transforms the vehicle’s handling characteristics. The addition of a Wavetrac Limited Slip Differential will allow you to consistently transfer more power to the ground and reduce slip whilst making oversteer more predictable and controllable.

Each pre-assembled exchange axle comes complete with the following:

1. Wavetrac ATB LSD
   
2. OE BMW Ring Gear Bolts
   
3. New, Genuine BMW Axle Seals
   
4. Backlash Setup to OE Tolerances
   
5. Precisely Machined Ring Gear
6. Blanking Plate for E-LSD Motor 

You will need to spec oil, for this application we advise for Motul Competiton 75w140 and you will need to code out the factory E-LSD in the electronic control unit, Wavetrac can do this in-house, specialist installers can do this too. 

The exchange process is a simple 2-step process you can find below.

1. Pay for the product + the exchange deposit and Wavetrac will send out to you a 30.309.155WKF or 30.309.172WKF
2. Wavetrac will then refund the exchange deposit if a complete, usable (in good working order) axle is received within 10 working days. Axles which require maintenance/repair to be put into service or are not in working order will not be refunded. Before sending your axle to Wavetrac, remove the electronic motor as they do not need this. 

COMPATIBILITY

– BMW F20/F21 M135i (2011-2016)
– BMW F20/F21 M140i (2016-2019)
– BMW F22/F23 M235i (2014-2021)
– BMW F22/F23 M240i (2014-2021)