These are the new adjustable aluminium rear H-arms for the YD-2 and YD-4 series of drift cars. The multi-piece wishbones are slightly shorter than the standard parts for improved drift performance while included shims allow to fine-tune the car’s track width to ensure best possible adaption to various track conditions and driving styles. The sturdy alloy material makes for great precision and an optimised weight distribution with the arms being a direct fit on the YD-2EXII car but they require Y2-301D2 and Y2-301E2 rear alloy arm mounts as well as B8-301BS bushings for installation in all other YD-2 and YD-4 kits.