2x Adapter Cable Audi 3Pin Input to 4Pin Output
Product information "2x Adapter Cable Audi 3Pin Input to 4Pin Output"
Adapter cable set for adapting an RS3 8V facelift exhaust system to an RS3 8V pre-facelift or S3 8V (all models)
The cables are simply plugged in between the flaps at the back.
No further measures or programming are necessary.