The
RAX Patch is a custom patch developed by community member
Richard to enable a variety of quality of life and control improvement features on the Evo X / Ralliart. Full credit/attribution goes to him, the original forum links can be found
here.
RAX3: SST Upshift Boost EC Management
This patch may be useful for reducing boost levels during SST upshifts at wide-open throttle. It will limit the positive error-correction factor when RPM is dropping. With RAX3, it is now possible to set a particular “maximum positive error correction” value to enforce during SST upshifts.
Installation Instructions for the RAX Patch can be found
HERE