Look for ffb plugins here :
Download the latest version (I think it's 1.4 but there wasnt any id0 update since 1.3 so 1.3 is fine too).
Unzip, copy the content of the ID0 folder to the game folder where the start.bat is.
Open the FFB plugin, set your wheel on the first thing you can click then you're good to go.
If your FFB is not right, click on FFB alternate on the same menu where you assign your wheel.
Enjoy~
PS : I just got my T300rs and it works nicely so if you have any problem, shout, I'll sort it out.