irFFB can feed the 360 Hz steering column torque data recently made available in iRacing telemetry to your wheel, upsample and apply low-latency digital filters to the standard (60 Hz) iRacing FFB output and modify the feedback via a number of effects based on live telemetry.
This version is a stripped version of Rob C's. Where jetseat/hidguradian/fan has been taken out so its FFB only.
There's more detail in the wiki..