Subaru Crosstrek catalytic converter issue on Subaru Crosstrek

Some Subaru Crosstrek owners report experiencing issues related to catalytic converter problems, such as limited performance at higher speeds, irregular engine running, and unusual exhaust gas odors. Symptoms like sluggish acceleration and decreased responsiveness may indicate a clogged or damaged converter, which restricts exhaust flow and affects engine efficiency. Additionally, some owners have noted concerns about premature failure of the catalytic converter, often caused by excessive raw fuel or oil burning, emphasizing the need to address underlying issues before replacement. The cost of replacing a catalytic converter can be significant, with quotes reaching up to $4500, particularly if parts are backordered. Owners also report that driving with a damaged converter can lead to engine harm and potential emissions check failures, highlighting the importance of prompt resolution to maintain engine health and compliance with emissions standards.