This is a sound mod for the Ruf Yellowbird.
I have to say that these sounds are not taken from a Ruf CTR. The recordings are from a 60´s Porsche 911 2.0 engine. I just did the sounds because i like the sound of this engine so much.
Put both files into this directory:
here a small preview:
For more information vistit Assetto Corsa Forum
Ruf Yellowbird sound mod V1.5
Assetto Corsa sound mod