Two catalytic converters.
The 2010 Odyssey uses a dual-cat exhaust system with one converter on each bank of its 3.5-liter V6 engine, helping to meet emissions standards for the model year. This setup is standard for Honda's J-series V6 in that generation.
Converter count and placement
Here's a concise breakdown of the two converters in this model, including where they're typically located and how they fit into the exhaust path.
- Two catalytic converters in total — one on each bank of the V6 engine.
- Placement: located along the underbody near the exhaust manifolds, with each converter serving its respective bank before the exhaust streams merge downstream.
Overall, the two converters work together to reduce pollutants before the exhaust exits the tailpipe.
Why two converters?
Having two converters allows more efficient pollutant reduction by treating exhaust from each bank independently, which is a common design for V6 Honda engines of this era.
Maintenance considerations
When inspecting or replacing parts, technicians usually check both converters to ensure consistent performance. A failed converter can trigger emissions warnings or affect engine performance, and replacements should use parts matching the factory specifications.
Summary
The 2010 Honda Odyssey uses a dual-cat exhaust system with two catalytic converters—one for each bank of the V6 engine. This configuration helps meet emissions standards for that model year and is typical of Honda's J-series V6 lineup from that era.