The GKTECH solid aluminium diff bushes are a direct replacement of the standard items and ensure that movement of the diff is kept to a minimum within the subframe which is quite common under hard driving conditions.

In addition to limiting the movement of your rear diff our risers raise the diff 10mm within the subframe limiting the angle of your axles on a lowered vehicle. If your car isn't super low, the OEM style solid bush is suggested. 

- CNC machined 6061-T6 aluminium and anodized black

OEM Style or raised version?
If your car is lowered, go with the raised version. There are no negatives and it fixes up bad axle angles which cause blown cv's.

Note: when running solid diff bushes it is recommended to also run our dual diff bracket as seen here: https://au.gktech.com/products/f8x-m2-m3-m4-dual-mount-diff-bracket 

Suits:
BMW
F8X (M2/M3/M4)