Which other parts do owners name in the same complaint?

Among the 870 owner complaints naming this part, catalytic converter is named in 8% of them, more than any other part.

Other parts named in the same complaints

Owners name the catalytic converter most often in the same complaint, which is not proof that one caused the other. Ask the shop whether it checked the catalytic converter too, so you are not quoted twice for one visit.

Source: NHTSA owner complaint files · file downloaded 2026-10-05

Data and chart by CalcScrape: Exhaust Pipe Replacement