"Catalyst System Efficiency Below Threshold"

"I need a replacement catalytic converter as it was stolen by the mechanic"

The user didn't provide a description

"I would like to do a de cat on my vehicle by removing the catalytic. Convertor"

"Engine light is active Car care clinic diagnostics indicates Upstream bank O2 sensor issues Can I get a quote on all sensors replacement and catalytic converter cleaning on the entire exhaust"

"Replacement of the full exhaust mechanism"

"not sure where the hole is but I think the sensor damage"

"The Engine Light is on. I took the car to a dealer and they said the fault code was a Bad cat and it needs to be replaced. They reset the code and the light went off but it came back on again after a few days."

"I took my car for repair and the mechanic stole my catalic convertor."

"I had my gearbox repaired and after receiving my vehicle back the engine light was on. The message on the the dashboard is that I must check the it anti-pollution system. The light was not on when I took the car in for repairs. My car also received its annual service last week and the light is still on. Please advise and quote."