{"id":78940,"date":"2022-12-06T22:33:06","date_gmt":"2022-12-07T06:33:06","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=78940"},"modified":"2025-08-26T19:27:44","modified_gmt":"2025-08-27T02:27:44","slug":"how-many-catalytic-converters-does-a-car-have","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/how-many-catalytic-converters-does-a-car-have\/","title":{"rendered":"How Many Catalytic Converters Does A Car Have?"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col,.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column78940_cfcd61-d3{position:relative;}@media all and (max-width: 1024px){.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column78940_cfcd61-d3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column78940_cfcd61-d3 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5edf33  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-8907ef\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1, .wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1[data-kb-block=\"kb-adv-heading78940_3a193d-b1\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1[data-kb-block=\"kb-adv-heading78940_3a193d-b1\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading78940_3a193d-b1[data-kb-block=\"kb-adv-heading78940_3a193d-b1\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading78940_3a193d-b1 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading78940_3a193d-b1\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Most cars only have one catalytic converter. But if a car has been modified to have a dual exhaust, it could have two catalytic converters. Dual catalytic converters are common in V-type engines.<\/li>\n\n\n\n<li>A catalytic converter uses catalysts (rhodium, palladium, and platinum) to kickstart a chemical reaction and make exhaust emissions less harmful. It&rsquo;s typically located near the exhaust manifold.<\/li>\n\n\n\n<li>Catalytic converters are not the same because they&rsquo;re made specifically for a vehicle model.&nbsp;<\/li>\n\n\n\n<li>Catalytic converters often fail due to contamination, wear and tear, and improper air\/fuel mixtures. A replacement catalytic converter can cost anywhere between $100 and $1000.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p><strong>Most cars only have one catalytic converter<\/strong>. But if a car has been modified to have a <strong>dual exhaust<\/strong>, it could have <strong>two catalytic converters<\/strong>. This setup is pretty common in V-type engines, but it&rsquo;s also possible to route the exhaust using one Y-shaped exhaust pipe.<\/p>\n\n\n\n<p>Vehicles that need to convert the exhaust several times to meet emissions regulations often have multiple <a href=\"https:\/\/www.carparts.com\/blog\/catalytic-converter-history\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converters\">catalytic converters<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Does a Catalytic Converter Work?<\/h2>\n\n\n\n<p>A catalytic converter uses catalysts (rhodium, palladium, and platinum) to kickstart a chemical reaction and make exhaust emissions less harmful.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-1024x682.jpg\" alt=\"close up of exhaust system catalytic converters\" class=\"wp-image-78943\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/close-up-of-exhaust-system-catalytic-converters.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">A catalytic converter uses catalysts (rhodium, palladium, and platinum) to kickstart a chemical reaction and make exhaust emissions less harmful.<\/figcaption><\/figure>\n\n\n\n<p>In a three-way catalytic converter, nitrogen oxide (NOx), carbon monoxide (CO), and hydrocarbons (HC) pass through the catalyst in the first section of the converter. During this phase, NOx emissions are reduced and separated into nitrogen and oxygen. In the second section of the catalytic converter, the hydrocarbons and carbon monoxide are oxidized, forming carbon dioxide (CO2) and water vapor (H2O).<\/p>\n\n\n\n<p>Vehicles equipped with an OBD-II system have a heated <a href=\"https:\/\/www.carparts.com\/oxygen-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oxygen (O2) sensor\">oxygen (O2) sensor<\/a> that monitors the catalytic converter&rsquo;s performance. The catalytic converters in modern vehicles have oxygen storage capacity because the catalyst is coated in cerium instead of precious metals.<\/p>\n\n\n\n<p>Watch this video to understand how catalytic converters work:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How Catalytic Converters Work | CarParts.com Parts Explained with Lucas Ventures\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/xTEtkOxowQM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>You can also check out these videos for tips on how to replace your catalytic converter:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to replace the Catalytic Converter 2009-2014 Ford F150 &#128763;\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Zu7mbaq60-I?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How to replace the Catalytic Converter 2009-2018 Dodge RAM 1500 &#128763;\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ZTwjAjq4Iz4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Where Is the Catalytic Converter Located?<\/h2>\n\n\n\n<p>The catalytic converter is ideally near the <a href=\"https:\/\/www.carparts.com\/exhaust-manifold\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust manifold\">exhaust manifold<\/a>. The farther it is from the exhaust system, the greater the amount of exhaust gases that need to cool before they reach the converter.<\/p>\n\n\n\n<p>The catalytic converter looks like a ceramic honeycomb with about 400 openings per square inch. The converter is layered with a washcoat, which is a porous aluminum material that makes the surface rough. The catalytic converter connects to the exhaust manifold using an <a href=\"https:\/\/www.carparts.com\/exhaust-pipe\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"exhaust pipe\">exhaust pipe<\/a>.<\/p>\n\n\n\n<div class=\"rsi-card\">\n  <div class=\"rsi-thumb\">\n    <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/d_noimage.jpg\/b_white\/e_sharpen,e_auto_brightness,e_auto_contrast\/f_auto\/q_auto:eco,dpr_auto\/w_873,h_873,c_pad\/images\/repg960301_2\">\n  <\/div>\n  <div class=\"rsi-info\">\n    <span class=\"rsi-title\">Recommended Catalytic Converters<\/span>\n    <span class=\"rsi-desc\">Find out which brands of catalytic converters are the best on the market. Weigh pros and cons, check for compatibility and emission standards, then select a catalytic converter that works best for you.<\/span>\n    <a href=\"https:\/\/www.carparts.com\/blog\/recommended-catalytic-converters\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Discover Your Options\">Discover Your Options<\/a>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">How Does a Catalytic Converter Fail?<\/h2>\n\n\n\n<p>A catalytic converter <a href=\"https:\/\/www.carparts.com\/blog\/how-long-does-a-catalytic-converter-last\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"can last up to 10 years or more\">can last up to 10 years or more<\/a>. However, various issues can cause it to fail ahead of its time. Here are some of them.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Contamination<\/h3>\n\n\n\n<p>The exhaust has a lot of excess engine oil, antifreeze, sulfur, and other chemicals, which increases the risk of damaging the catalytic converter.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Wear and Tear<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-1024x682.jpg\" alt=\"old car catalytic converter being checked by mechanic\" class=\"wp-image-78942\" style=\"width:1024px;height:682px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/old-car-catalytic-converter-being-checked-by-mechanic.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The catalytic converter can withstand excessive temperatures, but wear and tear can still take a toll on it over time.<\/figcaption><\/figure>\n\n\n\n<p>The catalytic converter can withstand excessive temperatures, but wear and tear can still take a toll on it over time. Unburned fuel or excessively lean mixtures and long idling periods can cause the converter&rsquo;s internal parts to break.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Improper Air\/Fuel Mixtures<\/h3>\n\n\n\n<p>Excessively <a href=\"https:\/\/www.carparts.com\/blog\/what-is-a-good-air-fuel-ratio-chart-included\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"lean or rich fuel mixtures\">lean or rich fuel mixtures<\/a> can affect the catalytic converter&rsquo;s operation. A misfiring engine or a defective coolant temperature sensor is usually the culprit behind this issue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Are All Catalytic Converters the Same?<\/h2>\n\n\n\n<p><strong>No. Many vehicles have direct-fit catalytic converters, which are made for a specific make and model. <\/strong>Their location can vary, as some are mounted closer to the exhaust manifold.<\/p>\n\n\n\n<p>Direct-fit catalytic converters typically have special fittings on each end of the device. These allow them to bolt directly into the exhaust of the vehicle they&rsquo;re designed for.<\/p>\n\n\n\n<p>In contrast, universal catalytic converters fit in a wide range of vehicles. While they&rsquo;re cheaper than direct-fit ones, they are often more complicated to install. They can only work when the catalytic converter&rsquo;s inlet and outlet tubes match the exhaust system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Is a Catalytic Converter?<\/h2>\n\n\n\n<p>A catalytic converter can cost anywhere between $100 to over $1000, depending on several factors. The brand, tube material, and state regulations (40 or 50-state legal) can affect the price for the part alone. As for labor costs, expect to pay around $70 to $130 an hour.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n    {\n        \"@context\": \"https:\/\/schema.org\",\n        \"@type\": \"QAPage\",\n        \"mainEntity\": {\n            \"@type\": \"Question\",\n            \"name\": \"How Many Catalytic Converters Does A Car Have?\",\n            \"text\": \"How Many Catalytic Converters Does A Car Have?\",\n            \"answerCount\": 1,\n            \"upvoteCount\": 0,\n            \"dateCreated\": \"2022-12-07T06:33:06Z\",\n            \"dateModified\": \"2023-05-04T03:05:51Z\",\n            \"author\": {\n                \"@type\": \"Person\",\n                \"name\": \"A user\"\n            },\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Most cars only have one catalytic converter. But if a car has been modified to have a dual exhaust, it could have two catalytic converters. This setup is pretty common in V-type engines, but it&rsquo;s also possible to route the exhaust using one Y-shaped exhaust pipe.\",\n                \"upvoteCount\": 0,\n                \"url\": \"https:\/\/www.carparts.com\/blog\/how-many-catalytic-converters-does-a-car-have\/\",\n                \"dateCreated\": \"2022-12-06T22:33:00Z\",\n                \"author\": [{\n                    \"@type\": \"Person\",\n                    \"name\": \"Lisa Conant, Automotive Features Reviewer at CarParts.com\"\n                  },\n                  {\n                    \"@type\": \"Person\",\n                    \"name\": \"CarParts.com Research Team\"\n                }]\n            }\n        }\n    }\n<\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New Catalytic Converter<\/h2>\n\n\n\n<p>If your <a href=\"https:\/\/www.carparts.com\/catalytic-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"catalytic converter\">catalytic converter<\/a> shows any of the signs of failure above, it might be time to replace it. A bad catalytic converter can cause various issues like increased emissions. On the bright side, finding a replacement is a breeze when you shop at <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>Our catalytic converters are carefully selected by industry professionals to ensure they&rsquo;re built to last. They come with a low-price guarantee, so you don&rsquo;t have to go over budget for your repairs. On top of that, our warehouses are strategically located all over the US, so you can expect your order on your doorstep in a few days.<\/p>\n\n\n\n<p>You don&rsquo;t have to get out of your house to get your hands on a new catalytic converter. Use your mobile device or computer to visit our website and shop for what you need. If you have any questions, contact our customer service team anytime via our toll-free hotline.<\/p>\n\n\n\n<p>Why deal with the hassles that come with driving with a bad catalytic converter? Get yourself a replacement at CarParts.com.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Most cars only have one catalytic converter. But if a car has been modified to have a dual exhaust, it&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/how-many-catalytic-converters-does-a-car-have\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":78944,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[52,3750],"tags":[1189,1238,1240,1190],"ppma_author":[2607,3269],"class_list":{"0":"post-78940","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-diy","8":"category-exhaust-system","9":"tag-catalytic-converter-2","10":"tag-exhaust-manifold-2","11":"tag-exhaust-pipe-2","12":"tag-oxygen-sensor-2","13":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Many Catalytic Converters Does A Car Have? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out how many catalytic converters your engine has and how they work.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/how-many-catalytic-converters-does-a-car-have\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Many Catalytic Converters Does A Car Have? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out how many catalytic converters your engine has and how they work.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/how-many-catalytic-converters-does-a-car-have\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-07T06:33:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-27T02:27:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/12\/exhaust-system-catalytic-converters.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Lisa Conant, Automotive Content Specialist\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/how-many-catalytic-converters-does-a-car-have\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/how-many-catalytic-converters-does-a-car-have\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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