We offer adjustable front wishbone bushings WITH CONTINUOUS ADJUSTMENT intended for settings and changes in the geometry of the front suspension for the BMW E46. DUE TO ITS CONSTRUCTION, THE SWINGARM SHOULD REQUIRE FINE GRINDING IN THE PLACE WHICH ENTERS THE UNIBALL. If you use wishbones produced typically for turning, there is no need to grind them. The bushings allow you to: - change the KWSZ (castor angle of the kingpin), which is particularly useful when it comes to drift. The bushings have a very large and smooth adjustment, which means that there is no the need to dismantle them for adjustment. The product is made in Poland by qualified people.