How many catalytic converters are on a 2004 Acura TL?
Two catalytic converters.
The 2004 Acura TL with the 3.2-liter V6 uses a dual-catalyst exhaust system. In factory trim, this means a close-coupled catalytic converter near the engine and a second converter further back along the exhaust. The setup helps meet emissions standards while maintaining performance and a dual-exhaust appearance.
Two catalytic converters in the 2004 TL
Below is a concise breakdown of where the converters sit and what they do within the system.
- Close-coupled catalytic converter: mounted on the exhaust downpipe near the engine; the first stage of emissions control, designed to reduce pollutants as soon as exhaust leaves the cylinders.
- Secondary catalytic converter: located downstream along the exhaust path, typically toward the middle of the vehicle; provides an additional stage of conversion to further reduce emissions before the gases reach the mufflers.
These two converters work together to meet regulatory requirements for emissions and to minimize exhaust backpressure while maintaining performance.
Summary
Summary: The 2004 Acura TL uses a two-catalytic-converter exhaust arrangement—one close to the engine and one downstream—forming a dual-cat system that is standard for that model year.
