The ceramic has hundreds of flow channels that allow the exhaust gasses to come in contact with a maximum amount of surface area where the catalyst reaction takes
Place. There are three basic types of Honda Accord Catalytic Converter; Two-Way, Three-Way and Three-Way + Air. Each type uses a slightly different method and chemistry to reduce the harmful elements in exhaust emissions. Early model Honda Accord Catalytic Converter used a pelletised catalyst, but most modern converters are now designed with a free-flowing honeycomb ceramic catalyst.
The type of converter required on a particular vehicle varies with model year, engine size and vehicle weight. Some vehicles even make use of more than one type of converter or a pre-converter to meet emission reduction standards.honda does a nice job of engineering their Accord Catalytic Converter to minimize fire risk by surrounding the catalyst with heat shields, often installing shields on the underbody of the car as well. All Honda Accord Catalytic Converter are fabricated from mandrel formed components with heavy-duty machined flanges and feature all stainless steel catalyst cases for a rust-free long life. These are a direct bolt-in fit... no welding required. And extra performance does not mean extra loudness, as our converters are acoustically tuned to duplicate the original equipment manufacturer's sound.