Chevy Catalytic Converters
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
- AP Exhaust®Medium Duty Universal Fit Oval Body Catalytic ConverterUniversal Medium Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$140.56
- AP Exhaust®Standard Duty Spun Body Universal Fit Round Body Catalytic ConverterUniversal Standard Duty Spun Body Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Today’s exhaust performance market...$101.22 - $250.00
- AP Exhaust®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The...$232.31 - $339.18
- Davico®OBDII Universal Fit Catalytic ConverterUniversal OBDII Catalytic Converter by Davico®. Converter Configuration: Universal Fit. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...$115.32 - $765.46
- CATCO®Universal Fit Catalytic ConverterUniversal Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Without Air Tube. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the...$128.47 - $250.13
- Eastern Catalytic®Universal Fit Large Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by road debris...$175.93 - $259.76
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$120.09 - $190.63
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$151.91 - $181.15
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Contains approximately 40% higher precious metal content than most other aftermarket brands. Aristo...$360.90 - $462.25
- Walker®Air Tube KitAir Tube Kit by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you get...Makes installation quick and easyOptimal OE-style fit and quality$53.24
- Davico®Direct Fit Catalytic Converter (17513)Catalytic Converter (17513) by Davico®. Converter Configuration: Direct Fit. Position: Front. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 13.5". This direct-fit catalytic converter by Davico will be a great solution to...$483.93
- Walker®Ultra™ Direct Fit Both Standard Oval Body Catalytic Converter and Pipe Assembly (50571)Ultra™ Catalytic Converter and Pipe Assembly (50571) by Walker®. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Body Shape: Both Standard Oval. With Pre and Post-Cat O2 Sensor Ports. Catalytic Converter...$696.17
- Walker®Ultra™ Direct Fit Front Round and Rear Oval Body Catalytic Converter and Pipe Assembly (50541)Ultra™ Catalytic Converter and Pipe Assembly (50541) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Front Round and Rear Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length:...$648.41
- Walker®Ultra™ Direct Fit Front Round and Rear Oval Body Catalytic Converter and Pipe Assembly (50542)Ultra™ Catalytic Converter and Pipe Assembly (50542) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Front Round and Rear Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length:...$417.05
- Walker®Ultra™ Direct Fit Front Standard Oval and Rear Round Body Catalytic Converter and Pipe Assembly (50572)Ultra™ Catalytic Converter and Pipe Assembly (50572) by Walker®. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Body Shape: Front Standard Oval and Rear Round. With Pre and Post-Cat O2 Sensor Ports....$923.60
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (55220)Ultra™ Catalytic Converter and Pipe Assembly (55220) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall Length: 54.75". Walker...$161.91
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (50418)Ultra™ Catalytic Converter and Pipe Assembly (50418) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 47". With 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$522.02
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (56203)Ultra™ Catalytic Converter and Pipe Assembly (56203) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 62". Walker is...$389.16
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (53726)Ultra™ Catalytic Converter and Pipe Assembly (53726) by Walker®. Converter Configuration: Direct Fit. Position: Passenger Side. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall...$629.99
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (53310)Ultra™ Catalytic Converter and Pipe Assembly (53310) by Walker®. Converter Configuration: Direct Fit. Position: Rear. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length:...$246.42
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (56132)Ultra™ Catalytic Converter and Pipe Assembly (56132) by Walker®. Converter Configuration: Direct Fit. Position: Driver Side. Catalytic Converter Body Shape: Large Oval. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall...$767.32
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (50509)Ultra™ Catalytic Converter and Pipe Assembly (50509) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length: 54.5". Walker...$432.92
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (40630)Ultra™ Catalytic Converter and Pipe Assembly (40630) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length: 61.375". Walker...$397.17
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (50546)Ultra™ Catalytic Converter and Pipe Assembly (50546) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 54.125". 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$544.19
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (40595)Ultra™ Catalytic Converter and Pipe Assembly (40595) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 54.125". 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$404.02
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (50409)Ultra™ Catalytic Converter and Pipe Assembly (50409) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length: 39.25". Walker...$431.27
- Walker®Ultra™ Direct Fit Large Oval Body Catalytic Converter and Pipe Assembly (50300)Ultra™ Catalytic Converter and Pipe Assembly (50300) by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length: 36". Walker is...$221.96
- Walker®Ultra™ Direct Fit Oval Body Catalytic Converter and Pipe Assembly (54900)Ultra™ Catalytic Converter and Pipe Assembly (54900) by Walker®. Position: Driver Side. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Oval. Catalytic Converter Overall Length: 32". With O2 Sensor Port. Walker...Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability$463.78
- Walker®Ultra™ Direct Fit Oval Body Catalytic Converter and Pipe Assembly (16671)Ultra™ Catalytic Converter and Pipe Assembly (16671) by Walker®. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Body Shape: Oval. With 2 Inlets. With O2 Sensor Port. Catalytic Converter Overall Length:...$880.43
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The Chevy 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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