I for one would appreciate the feedback of many GTS owners. Mine is here is 3-4 weeks. The opinions are so scattered and sound is very subjective. I heard the car in person and it seemed fairly loud. After reading many posts, it seems after 2000 kms or so the sound does improve dramatically. Also the sound is described as a more a deeper base vs an older F1 racer “shriek”. I’m hesitant to have a CEL delete as this will Mask a potential problem that could be very costly and damaging. Any input would be appreciated. Or I can just wait a few weeks. Lol.