Check the option parts that XRAY Team driver Paul Ciccarello from the US has been using at his XRAY XB8E'21. Paul explains also the benefit of each part, for which track conditions they should be used and what performance improvement you will experience
#352372 XB8 Alu Steering Block Plate +2mm
>>> The alu steering block plate gives me all the steering I need for tight 180s but still no too much steering in the wide turns
(click to enlarge)
Extreme Heat Resist. Center Diff Pin with Inserts #355087 Alu Diff Pin #355083 Diff Pin
>>> These diff pins keep a consistent mesh of the diff gears in the long mains and throughout the season