This is an optional Tekno RC NT48 2.0/ET48 2.0 Front Sway Bar Set (2.1, 2.2, 2.3, 2.4, 2.5mm).
This can be used with the ET48 2.0 vehicle and should be a direct replacement for the stock part or used as a new feature. Please use the instruction manual for the kit(s) listed to verify compatibility and no additional items are necessary before purchasing.
