How many catalytic converters does the 2008 Honda Ridgeline have?

There is only one catalytic converter on the 2008 Honda Ridgeline . The catalytic converter basically scrubs the exhaust gas is to remove harmful heavy metals from entering the atmosphere. Overtime the catalytic converter can become clogged restricting the airflow in the exhaust causing the engine's performance to be reduced. One of the most common causes of catalytic failure is due to the engine running too rich and dumping the excess fuel into the exhaust. If Your exhaust fumes have a strong sulfur smell, this is a good indication of the catalytic converter needs replaced. Along with that, the reduced engine performance, other symptoms of a bad converter is dark smoke coming out of the tailpipe.