When you download the set-up save it to: LFS_S2_ALPHA_U>Data>Settings
When in game, select the car that you downloaded the set-up for and on the top right (after selecting car) it will have the saved settings, these include; RACE_S and DEFAULT. Your downloaded setting will be on that list, and since its from Team Inferno then it will have the track code (BL1) followed by the WR holders name. Click on the setting and click ok (bottom left of screen) and away you go.