Friends, first of all, greetings to everyone. In the 208s, the famous P0420 fault code was opened as a separate topic, and I wanted to open a new topic because the subject changed under different conditions. While I was going from Üsküdar to Çamlıca in my vehicle (1.2 vti), the engine light came on after that steep ramp. When connected with obd2 device, I saw a catalytic converter failure record. The strange thing is that this malfunction had occurred long before I bought the vehicle and was deleted. And 2 days later it was deleted from me by itself. Now I want to ask you by skipping the part about the environment (orj. Catalyst is 7500 TL, I think the room is out) or I have endless respect for the environment. In a 1.2 vti 3-cylinder vehicle, does the floor cancellation kill the lower revs? Will I experience a bulkiness in the vehicle? Because there are many people who say that the car does not go at low revs. There are also many who say that they have not seen a performance loss. That's why I wanted to ask you first. Anyone have it done? If you are satisfied or not, I would be very happy if you let me know. Sorry if I gave you a headache. My best regards. Have a nice ride everyone...