Infiniti Catalytic Converters
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16343)Ultra™ Catalytic Converter (16343) by Walker®. Converter Configuration: Direct Fit. Position: Front Driver Side. Catalytic Converter Body Shape: Round. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall Length: 10"....$402.70
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16362)Ultra™ Catalytic Converter (16362) by Walker®. Position: Front Driver Side. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. Catalytic Converter Overall Length: 10.5". With O2 Sensor Port. Walker is an OE...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$604.64
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16210)Ultra™ Catalytic Converter (16210) by Walker®. Position: Rear. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. Catalytic Converter Overall Length: 12.375". Without O2 Sensor Port. Walker is an OE supplier...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$385.10
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16209)Ultra™ Catalytic Converter (16209) by Walker®. Position: Front Passenger Side. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. Catalytic Converter Overall Length: 8.75". Without O2 Sensor Port. Walker is...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$319.76
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16198)Ultra™ Catalytic Converter (16198) by Walker®. Converter Configuration: Direct Fit. Position: Driver Side. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 14.375". Walker...$613.99
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16197)Ultra™ Catalytic Converter (16197) by Walker®. Converter Configuration: Direct Fit. Position: Passenger Side. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 14.25"....$566.07
- Walker®Ultra™ Direct Fit Round Body Catalytic Converter (16192)Ultra™ Catalytic Converter (16192) by Walker®. Converter Configuration: Direct Fit. Position: Front Driver Side. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 11.5"....$454.97
- Walker®Ultra™ Direct Fit Standard Oval Body Catalytic Converter (16033)Ultra™ Catalytic Converter (16033) by Walker®. Converter Configuration: Direct Fit. Position: Rear. Catalytic Converter Body Shape: Standard Oval. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall Length: 12.375"....$262.66
- Walker®Ultra™ Direct Fit Standard Oval Body Catalytic Converter (15851)Ultra™ Catalytic Converter (15851) by Walker®. Converter Configuration: Direct Fit. Position: Rear. Catalytic Converter Body Shape: Standard Oval. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall Length: 12.375"....$181.65
- MagnaFlow®Direct Fit Catalytic Converter (4481707)Catalytic Converter (4481707) by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter will directly replace the factory unit, with little or...$1,197.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (50878)Heavy Metal Catalytic Converter (50878) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Front. With Gasket. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet Diameter: 4". Catalytic Outlet Diameter: 2"....$1,082.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (93231)Heavy Metal Catalytic Converter (93231) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Front Forward. With Gaskets. Without Air Tube. Catalytic Converter Overall Length: 9". If your car needs replacement, install one that...$826.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (23704)Heavy Metal Catalytic Converter (23704) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear. With Gasket. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5"....$401.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (27503)Heavy Metal Catalytic Converter (27503) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Front. With Gasket. Without Air Tube. With Pre-Cat O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter: 1.875"....$1,012.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (23744)Heavy Metal Catalytic Converter (23744) by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. Catalytic Converter Overall Length: 12.75". If your car needs replacement, install one that will get you through the smog...$314.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (24748)Heavy Metal Catalytic Converter (24748) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear Driver Side. With Gaskets. Without Air Tube. With Pre-Cat O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$350.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (24086)Heavy Metal Catalytic Converter (24086) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Driver Side. With Gaskets. Without Air Tube. Catalytic Converter Overall Length: 21". If your car needs replacement, install one that...$641.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (24082)Heavy Metal Catalytic Converter (24082) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Passenger Side. With Gaskets. Without Air Tube. Catalytic Converter Overall Length: 19.5". If your car needs replacement, install one...$674.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (93197)Heavy Metal Catalytic Converter (93197) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5"....$376.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (50877)Heavy Metal Catalytic Converter (50877) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear. With Gasket. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2". Catalytic...$410.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (50832)Heavy Metal Catalytic Converter (50832) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Front Passenger Side. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 3.5". Catalytic Outlet Diameter: 2"....$441.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (50212)Heavy Metal Catalytic Converter (50212) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Passenger Side. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Converter Overall Length: 8.25". If your car needs...$387.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (50211)Heavy Metal Catalytic Converter (50211) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Driver Side. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 4". Catalytic Outlet Diameter: 2"....$354.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (24118)Heavy Metal Catalytic Converter (24118) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear Passenger Side. With Gaskets. Without Air Tube. With Pre-Cat O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$328.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (23741)Heavy Metal Catalytic Converter (23741) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Passenger Side. Without Air Tube. Catalytic Converter Overall Length: 41.5". If your car needs replacement, install one that will get...$396.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic Converter (93230)Heavy Metal Catalytic Converter (93230) by MagnaFlow®. Converter Configuration: Direct Fit. Position: Rear. With Gasket. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter:...$305.00
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic Converter (99104HM)Heavy Metal Catalytic Converter (99104HM) by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter:...$170.00
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic Converter (99184HM)Heavy Metal Catalytic Converter (99184HM) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic...$173.00
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic Converter (99174HM)Heavy Metal Catalytic Converter (99174HM) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Front. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic...$172.00
- MagnaFlow®Heavy Metal Universal Fit Oval Body Catalytic Converter (99175HM)Heavy Metal Catalytic Converter (99175HM) by MagnaFlow®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic...$172.00
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The Infiniti catalytic converter (AKA catcon or cat) was first introduced in the mid-70's, and back then, it performed only two tasks, which is exactly why it was called a two-way converter. It oxidized carbon monoxide to carbon dioxide and hydrocarbons to water and carbon dioxide (oxidation stage). In 1981, the two-way converter was replaced by a much more efficient three-way catcon, which additionally reduced nitrogen oxide emissions (reduction stage).
Today, the two-way version is used in diesel applications only, while most vehicles are equipped with a three-way catalytic converter. Located between the engine and muffler, the converter actually resembles a muffler in shape, though the construction of these two units is completely different. The body of the converter is usually made of stainless steel. Inside the body, you'll find an insulated chamber, which contains three main components of any converter: substrate (or catalyst core), washcoat, and catalyst.
The catalyst core usually has a honeycomb structure, and it's most often a ceramic monolith. Basically, it serves as a support for the washcoat. The washcoat itself is a carrier for the catalytic materials. Materials for the washcoat are chosen to form an irregular surface, which maximizes the catalytically active layer available to react with the exhaust gases. And then comes the catalyst, which is most ofter a mixture of precious metals such as palladium (oxidation catalyst) and rhodium (reduction catalyst). When the exhaust stream passes through the converter, it contacts with the catalyst and all the toxic elements covert into the harmless substances. The leaving gas is monitored by the control system to make sure it meets the emissions requirements.
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