{"id":8734,"date":"2021-05-02T19:10:00","date_gmt":"2021-05-03T02:10:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=8734"},"modified":"2026-02-18T01:16:16","modified_gmt":"2026-02-18T09:16:16","slug":"can-you-drive-without-a-catalytic-converter","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/can-you-drive-without-a-catalytic-converter\/","title":{"rendered":"Can You Drive Without a Catalytic Converter?"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<!-- Added by Post\/Page Specific Custom Code plugin, thank you for using! --><html><head><style>#article-search-widget {display: none;}<\/style>\n<\/head><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\"> 8<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column8734_6fca4c-bc > .kt-inside-inner-col,.kadence-column8734_6fca4c-bc > .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-column8734_6fca4c-bc > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column8734_6fca4c-bc > .kt-inside-inner-col{flex-direction:column;}.kadence-column8734_6fca4c-bc > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column8734_6fca4c-bc > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column8734_6fca4c-bc{position:relative;}@media all and (max-width: 1024px){.kadence-column8734_6fca4c-bc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column8734_6fca4c-bc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column8734_6fca4c-bc inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-515585  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-9c9011\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading8734_310912-5c, .wp-block-kadence-advancedheading.kt-adv-heading8734_310912-5c[data-kb-block=\"kb-adv-heading8734_310912-5c\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading8734_310912-5c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading8734_310912-5c[data-kb-block=\"kb-adv-heading8734_310912-5c\"] 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-heading8734_310912-5c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading8734_310912-5c[data-kb-block=\"kb-adv-heading8734_310912-5c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading8734_310912-5c summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading8734_310912-5c\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Catalytic converters in vehicles are responsible for converting nitrogen oxides, hydrocarbons, and carbon monoxide into harmless water and carbon dioxide.<\/li>\n\n\n\n<li>You can technically drive without a catalytic converter, but doing so would be illegal.<\/li>\n\n\n\n<li>If your catalytic converter has been stolen, you&rsquo;ll probably notice because your engine will be much louder while idling.<\/li>\n\n\n\n<li>Driving without a catalytic converter won&rsquo;t compromise your safety, but you will be at risk of being fined.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The catalytic converter is tougher than most parts found in your car. That&rsquo;s because it needs that toughness to withstand high operating temperatures. But it can still break down or fail due to rust, impact damage, or engine performance problems.&nbsp;<\/p>\n\n\n\n<p>If the converter breaks down while you&rsquo;re on the road, can you keep driving your car? Is it safe to drive without a cat-con? How long can you drive before you have to replace it? What if your catalytic converter is stolen?<\/p>\n\n\n\n<p>Let&rsquo;s answer some of these questions.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Driving with a Bad Catalytic Converter: Is it Possible?<\/h2>\n\n\n\n<p>Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is&mdash;should you risk it?&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-1024x683.jpg\" alt=\"car under chassis showing catalytic converter\" class=\"wp-image-38580\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-under-chassis-showing-catalytic-converter-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Removing or disabling the catalytic converter could cost you several thousand dollars in fines.<\/figcaption><\/figure>\n\n\n\n<p>First, what you need to know is that tampering with the catalytic converter in any way is illegal. You cannot remove or disable this component, and doing so could cost you several thousand dollars in fines. This is especially true in states like California, which has pretty strict laws regarding vehicle emissions.&nbsp;<\/p>\n\n\n\n<p>Another problem is that removing the light-off catalyst (the one closest to the engine) from a modern car (newer than 1996) will trigger the check engine light due to the OBD 2 catalyst efficiency monitor. The light-off catalyst has an oxygen (O2) sensor behind it that measures the oxygen storage capacity of that particular converter. Six- and eight-cylinder engines will have two of these light-off converters (one for each bank), while four-cylinder engines will have only one. And for each light-off catalyst, there is an O2 sensor monitoring the exhaust stream directly behind that catalyst. Parts stores refer to this O2 sensor as a &ldquo;downstream O2 sensor.&rdquo;<\/p>\n\n\n\n<p>The rear catalyst isn&rsquo;t monitored for O2 storage and won&rsquo;t trigger the check engine light (MIL) if removed. But if that catalyst is removed, it will always cause the vehicle to fail emissions testing.<\/p>\n\n\n<style>.kadence-column8734_6b74ba-48 > .kt-inside-inner-col,.kadence-column8734_6b74ba-48 > .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-column8734_6b74ba-48 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column8734_6b74ba-48 > .kt-inside-inner-col{flex-direction:column;}.kadence-column8734_6b74ba-48 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column8734_6b74ba-48 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column8734_6b74ba-48{position:relative;}@media all and (max-width: 1024px){.kadence-column8734_6b74ba-48 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column8734_6b74ba-48 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column8734_6b74ba-48 kb-section-dir-vertical kb-section-sm-dir-vertical inner-column-1 pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>.kb-row-layout-id8734_5bc630-18 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id8734_5bc630-18 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id8734_5bc630-18 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:20px;padding-right:32px;padding-bottom:20px;padding-left:16px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}.kb-row-layout-id8734_5bc630-18 > .kt-row-layout-overlay{opacity:0.00;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-top-sep{height:100px;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-top-sep svg{width:100%;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id8734_5bc630-18 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id8734_5bc630-18 > .kt-row-column-wrap{padding-top:28px;padding-right:16px;padding-bottom:25px;padding-left:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id8734_5bc630-18 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id8734_5bc630-18 alignnone pro-tip-wrap wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-right-golden kt-mobile-layout-right-golden kt-row-valign-top\">\n<style>.kadence-column8734_b261ca-64 > .kt-inside-inner-col{display:flex;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col{min-height:45px;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col,.kadence-column8734_b261ca-64 > .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-column8734_b261ca-64 > .kt-inside-inner-col{row-gap:0px;column-gap:0px;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col > *, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column8734_b261ca-64{position:relative;}@media all and (max-width: 1024px){.kadence-column8734_b261ca-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column8734_b261ca-64 > .kt-inside-inner-col > *, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column8734_b261ca-64 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col > *, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column8734_b261ca-64 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column8734_b261ca-64 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column8734_b261ca-64 kb-section-dir-horizontal kb-section-md-dir-horizontal inner-column-1 pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image8734_53513f-27.kb-image-is-ratio-size, .kb-image8734_53513f-27 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image8734_53513f-27.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image8734_53513f-27 .kb-image-is-ratio-size{align-self:unset;}.kb-image8734_53513f-27 figure{max-width:45px;}.kb-image8734_53513f-27 .image-is-svg, .kb-image8734_53513f-27 .image-is-svg img{width:100%;}.kb-image8734_53513f-27 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image8734_53513f-27\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column8734_3d0644-ba > .kt-inside-inner-col,.kadence-column8734_3d0644-ba > .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-column8734_3d0644-ba > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column8734_3d0644-ba > .kt-inside-inner-col{flex-direction:column;}.kadence-column8734_3d0644-ba > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column8734_3d0644-ba > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column8734_3d0644-ba{position:relative;}@media all and (max-width: 1024px){.kadence-column8734_3d0644-ba > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column8734_3d0644-ba > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column8734_3d0644-ba inner-column-2 pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nThe front catalyst handles NOx and the rear catalyst handles CO and HC emissions because the same catalyst can&rsquo;t handle all three.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/p2096-code-post-catalyst-fuel-trim-system-too-lean-bank-1\/\" target=\"_self\" rel=\"dofollow\" class=\"ua44e5eb1b7f59c72f7b36e6797f36d9a\"><style> .ua44e5eb1b7f59c72f7b36e6797f36d9a { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .ua44e5eb1b7f59c72f7b36e6797f36d9a:active, .ua44e5eb1b7f59c72f7b36e6797f36d9a:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .ua44e5eb1b7f59c72f7b36e6797f36d9a { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .ua44e5eb1b7f59c72f7b36e6797f36d9a .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .ua44e5eb1b7f59c72f7b36e6797f36d9a .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .ua44e5eb1b7f59c72f7b36e6797f36d9a:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">P2096 Code: Post Catalyst Fuel Trim System Too Lean (Bank 1)<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>So in states and cities where emissions testing is a requirement, removing either the front or rear catalytic converters will cause your vehicle to fail the emissions test. As a result, you will be unable to get your registration renewed until the vehicle&rsquo;s emissions system is restored to OEM specifications.<\/p>\n\n\n\n<p>What about a situation where the converter is intact but not working properly? Well, that will obviously cause your vehicle to fail emissions testing. If the powertrain control module&rsquo;s catalyst monitor function determines a monitored converter&rsquo;s O2 storage capacity has deteriorated, a diagnostic trouble code will be stored.&nbsp;<\/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<p>This will also be true if the <a href=\"https:\/\/www.carparts.com\/blog\/how-to-tell-if-the-catalytic-converter-is-clogged\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"converter is clogged\">converter is clogged<\/a> because the honeycomb brick has broken up or gotten seriously damaged by external impact. Your car may exhibit symptoms ranging from a slight lack of power and a noticeable loss of fuel economy to a dreadfully sluggish running engine or even a no-start.<\/p>\n\n\n\n<p>Typically a catalyst that has failed so that it affects the way the vehicle performs deteriorates slowly enough that it may not be noticeable at first. Some people will ignore a mild loss of power and\/or even an illuminated check engine light and continue to drive until the failure becomes severe. The point is that if the converter is simply suffering from a decline in efficiency, you can continue driving without having to worry about your car breaking down. But you will, in states where emissions testing is required, eventually need to have repairs done.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Long Can You Drive Without a Catalytic Converter?<\/h2>\n\n\n\n<p>Vehicles can be driven without a catalytic converter. There are vehicles in non-emission testing areas that have had their catalytic converters removed, but removing a cat-con is against the law in every state, even those that don&rsquo;t enforce emissions standards. If you remove the converter yourself (a reputable shop won&rsquo;t usually do this for you), just know that intentionally disabling the emission system on a vehicle is considered a serious offense. And the government can legally fine you many thousands of dollars for doing so.<\/p>\n\n\n\n<p>In the event your catalytic converter has been stolen, you&rsquo;ll know as soon as you start your vehicle. The loud, booming idle is a giveaway that your catalytic converter has been sawed off.  You may be able to file an insurance claim to have the exhaust system repaired, although we recommend installing a catalytic converter protection shield preventatively. Protecting your vehicle with an easy-to-install shield, such as one from <a href=\"https:\/\/www.carparts.com\/cat-security\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Cat Security\">Cat Security<\/a>, can help you avoid theft altogether and save you thousands. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Is it Safe to Drive With a Bad Catalytic Converter?<\/h2>\n\n\n\n<p>To answer the question, let&rsquo;s begin by saying that a <em>missing<\/em><em> <\/em>converter and a <em>failed<\/em> converter are two different things. If the vehicle will run well enough to get you from point A to point B, then yes, it&rsquo;s safe to drive. But catalytic converters don&rsquo;t always fail the same way.<\/p>\n\n\n\n<p>If the converter has failed or is missing, safety won&rsquo;t be a factor. But you&rsquo;ll want to replace the converter as soon as you discover the failure or theft. Also, never buy any vehicle that has had its converter removed unless you plan to repair the exhaust to make it legal again. After all, &ldquo;safe&rdquo; is a relative word. You might be physically safe, but legally unsafe.&nbsp;<\/p>\n\n\n\n<p>Further, if your catalytic converter is clogged or breaking up internally to the point that it&rsquo;s robbing your vehicle of power, it may not be a good idea to continue driving. Driving in thick, fast traffic (like a crowded interstate near a large city) with a vehicle that doesn&rsquo;t perform the way it is supposed to can cause serious road accidents.&nbsp;<\/p>\n\n\n\n<p>And remember, a faulty converter means increased tailpipe emissions, even if you don&rsquo;t see or smell anything from the exhaust. This isn&rsquo;t environmentally friendly. Also, carbon monoxide (one of the three gasses the converter deals with) can kill people in enclosed spaces. The risk is greatest when there are exhaust leaks and the vehicle is idling for an extended period with people inside.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"651\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-1024x651.jpg\" alt=\"car exhaust pipe releasing combustion fumes\" class=\"wp-image-38576\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-1024x651.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-300x191.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-768x488.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-1536x977.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/04\/car-exhaust-pipe-releasing-combustion-fumes-150x95.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">A faulty converter means increased tailpipe emissions, even if you don&rsquo;t see or smell anything from the exhaust.<\/figcaption><\/figure>\n\n\n\n<p>And again, if the converter has <a href=\"https:\/\/www.carparts.com\/blog\/how-long-does-a-catalytic-converter-last\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"mechanically failed\">mechanically failed<\/a> to the point that it restricts exhaust flow, it will cause engine performance problems. But there won&rsquo;t usually be any damage to other parts of your car. A notable exception to the &ldquo;no usual damage&rdquo; statement above would be a converter that gets extremely hot (like RED hot, which can and does happen). There have been parked vehicles that set dry grass on fire. Remember, most fuel tanks on modern cars are plastic, as are some of the fuel lines. That fire-under-the-car situation is deadly and can set fire to the whole car, not to mention the danger to people in or around it along with other cars.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>A notable exception to the &ldquo;no usual damage&rdquo; statement (if the converter has mechanically failed to the point that it restricts exhaust flow, causing engine performance problem) would be a converter that gets extremely hot (like red hot, which can and does happen). There have been parked vehicles that set dry grass on fire. Remember, most fuel tanks on modern cars are plastic, as are some of the fuel lines. That fire-under-the-car situation is deadly and can set fire to the whole car, not to mention the danger to people in or around it along with other cars.<\/p>\n<cite>&ndash;<a href=\"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Richard McCuistian, ASE Certified Master Automobile Technician\">Richard McCuistian, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">What is a Catalytic Converter?<\/h2>\n\n\n\n<p>The catalytic converter is an emission control device found in the exhaust system. First introduced in the 1970s, it quickly became standard issue equipment on most vehicles.&nbsp;&nbsp;<\/p>\n\n\n\n<p>Today, federal and state laws require its presence on nearly all vehicles. As previously mentioned, it&rsquo;s illegal to remove, modify, or deliberately damage the converter for whatever reason.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does a Catalytic Converter Do?<\/h2>\n\n\n\n<p>A three-way catalytic converter transforms three pollutants&mdash;oxides of nitrogen, hydrocarbons, and carbon monoxide&mdash;into harmless water and carbon dioxide.<\/p>\n\n\n\n<p>NOx is created when the combustion chamber&rsquo;s &ldquo;burn&rdquo; temperature rises above 2500 degrees Fahrenheit because the atmosphere is 78% nitrogen and 21% oxygen. When atomized hydrocarbon fuel is ignited in the combustion chambers, it superheats the nitrogen, causing it to expand. This is what drives the piston during combustion events. However, at high temperatures, NOx is formed because oxygen becomes bound to nitrogen.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/egr-valve\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Exhaust gas recirculation\">Exhaust gas recirculation<\/a><em> <\/em>(EGR) is an emissions system component that re-introduces some inert, oxygen-free gas to the intake stream while the vehicle is above idle. This cools the combustion burn to prevent NOx.<\/p>\n\n\n\n<p>As for the hydrocarbon (HC), every molecule of HC wants to get &ldquo;married&rdquo; to two molecules of oxygen when the spark happens. Uniting the oxygen with the carbon happens when the spark triggers a combustion event. When the air\/fuel mix is right, the aftermath of this explosion is CO2, which is the same thing people and animals breathe out.<\/p>\n\n\n\n<p>If there is slightly too much fuel, some molecules of HC only get one molecule of oxygen (CO) or NO molecules of oxygen, leaving the HC to exit the engine all by itself. The catalyst breaks NOx down to nitrogen and oxygen, then adds oxygen molecules to the CO and HC to convert them to CO2. A byproduct of engine combustion (by default) is water vapor, which is as harmless as CO2.&nbsp;<\/p>\n\n\n\n<p>The converter uses precious metals to trigger chemical reactions that change the toxic gases into safer substances without changing the converter itself. That&rsquo;s what a &ldquo;catalyst&rdquo; does.<\/p>\n\n\n\n<p>Here&rsquo;s a helpful video about 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 this video 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<h2 class=\"wp-block-heading\">Symptoms of a Bad or Failing Catalytic Converter<\/h2>\n\n\n\n<p>There are warning signs that your vehicle&rsquo;s catalytic converter has failed or is starting to fail. They include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li>\n\n\n\n<li>Lack of acceleration&nbsp;<\/li>\n\n\n\n<li>Stalling<\/li>\n\n\n\n<li>Hard starting or a vehicle that won&rsquo;t start at all<\/li>\n<\/ul>\n\n\n\n<p>In most cases, the only sign of a failed converter will be an illuminated check engine light. But in instances where the converter becomes clogged or restricted, issues such as lack of acceleration, stalling, and hard starting may occur.&nbsp;<\/p>\n\n\n\n<p>To summarize, it&rsquo;s possible but illegal and potentially unsafe to drive a car with a missing or bad catalytic converter. If you must operate your vehicle before you can afford a replacement cat-con, try to keep your trips brief and drive only to nearby locations.<\/p>\n\n\n\n    <div class=\"perspective-widget\">\n        <div class=\"pt-child-wrap\">\n\n            <div class=\"pt-col-item1\">\n                <figure class=\"aligncenter size-large\">\n                        <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/dpr_auto,f_auto,q_auto\/carparts\/blog\/plugins\/amp\/avatar-comments\" class=\"com-thumb\" alt=\"Avatar of CarParts.com Research Team\" width=\"100\" height=\"100\">\n                <\/figure>\n                <p>\n                    <strong>John P.<\/strong> \n                    <span>User<\/span>\n                <\/p>\n            <\/div>\n\n            <div class=\"pt-col-item2\">\n                <div class=\"protip-desc\">\n                    <div class=\"perspective-help-tip\">   \n                        <p>There&rsquo;s more than one way to look at an issue. &ldquo;Community Perspectives&rdquo; highlight authentic personal viewpoints and real-life experiences by the CarParts.com community, including our readers, experts, and product specialists, among others. This can help you make better informed decisions about your car.<\/p>\n                    <\/div>\n                    <div class=\"perspective-help-caption tooltip\"> \n                        <h2>CarParts.com Community Perspectives<\/h2>\n                        <p>Reading about the catalytic converter test pipe. About 20 years ago, the catalytic converter in my Dakota fell apart under warranty. Defective, and it rattled inside. So they put a new one on, and guess what? 13 months later, it did the same thing: rattled right apart on the inside. Chrysler will not do a thing.\n\nSo my Nifty cousin gets his torch out and opens the catalytic converter and takes all the guts out. Which, by the way, were in pieces. Then he welded shut the opening, and we left it up there. So now we had a hollow catalytic converter, but it looked like it was still on. Ran for years with no problem in a non-emissions state.<\/p>\n                        <div class=\"cta-btn\">\n                            <a href=\"https:\/\/www.carparts.com\/blog\/can-you-drive-without-a-catalytic-converter\/#commentform\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Jump to Discussions\">Jump to Discussions<\/a>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n\n        <\/div>\n    <\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Buy A Quality Replacement Catalytic Converter<\/h2>\n\n\n\n<p>Because driving without a catalytic converter is illegal, be sure to replace your vehicle&rsquo;s damaged catalytic converter if it&rsquo;s beyond repair. But where can you find a good one?<\/p>\n\n\n\n<p>The answer is the JC Whitney Performance Parts + Accessories Hub. The JC Whitney Hub is your one-stop shop for performance and repair parts. The hub brings together some of the best names in the automotive parts industry. Visit the <a href=\"https:\/\/www.carparts.com\/blog\/powered-by-jc-whitney\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"JC Whitney Performance Hub\">JC Whitney Performance Hub<\/a> now to receive product previews and exclusive updates.<\/p>\n\n\n\n<p>To start repairs right away, pick up a premium set of JC Whitney tools. They&rsquo;ll make an excellent addition to your garage. Buy a new set of <a href=\"https:\/\/www.carparts.com\/search?q=jcw_tools\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"JC Whitney tools\">JC Whitney tools<\/a> today.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Products Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\">\n\n\n<!-- start of editable content -->\n\n\n<a href=\"https:\/\/www.carparts.com\/catalytic-converter-security-shield\" aria-label=\"Catalytic Converter Security Shield\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/ccmcatscrtac2_1\">\n<strong>Catalytic Converter Security Shield<\/strong>\n<\/a>\n\n\n<a href=\"https:\/\/www.carparts.com\/catalytic-converter\" aria-label=\"Catalytic Converter\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repi960303_1\">\n<strong>Catalytic Converter<\/strong>\n<\/a>\n\n\n<a href=\"https:\/\/www.carparts.com\/egr-valve\" aria-label=\"EGR Valve\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repf509202_1\">\n<strong>EGR Valve<\/strong>\n<\/a>\n\n\n<!-- end of editable content -->\n\n\n<\/div>\n\n\n\n<!-- Error, Advert is not available at this time due to schedule\/geolocation restrictions! -->\n\n\n\n<div class=\"shop-project\">\n\n    <h2>Shop this Project<\/h2>\n\n    <ul class=\"shop-project-list\">\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960344_1\" alt=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/repn960344_1\" alt=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine\">Evan Fischer&reg; &ndash; Rear Catalytic Converter, Federal EPA Standard, 46-State Legal, 2.5L Engine<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$154.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/evan-fischer\/repn960344\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/jc-whitney\/jf960330\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/jf960330_1\" alt=\"JC Whitney&reg; &ndash; Driver Side Direct Replacement Series Catalytic Converter, 8, 5.4 4WD Federal EPA Standard, 46-State Legal\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/jf960330_1\" alt=\"JC Whitney&reg; &ndash; Driver Side Direct Replacement Series Catalytic Converter, 8, 5.4 4WD Federal EPA Standard, 46-State Legal\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/jc-whitney\/jf960330\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"JC Whitney&reg; &ndash; Driver Side Direct Replacement Series Catalytic Converter, 8, 5.4 4WD Federal EPA Standard, 46-State Legal\">JC Whitney&reg; &ndash; Driver Side Direct Replacement Series Catalytic Converter, 8, 5.4 4WD Federal EPA Standard, 46-State Legal<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-4.5.svg\" alt=\"4.5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$239.99<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/jc-whitney\/jf960330\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n        \n        <li>\n            <div class=\"shop-project-item\">\n                <div class=\"stp-image-url\">\n                    <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/magnaflow\/m665582941\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label='&lt;img src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/m665582941_1\" alt=\" Magnaflow&reg; &ndash; 5582941 Front California Series Catalytic Converter, 4, 2.4 CARB and Federal EPA Standards, 50-state Legal\" \/&gt;'><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/images\/m665582941_1\" alt=\" Magnaflow&reg; &ndash; 5582941 Front California Series Catalytic Converter, 4, 2.4 CARB and Federal EPA Standards, 50-state Legal\"><\/a>\n                <\/div>\n\n                <div class=\"stp-desc\">\n                                            <p class=\"stp-title\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/magnaflow\/m665582941\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Magnaflow&reg; &ndash; 5582941 Front California Series Catalytic Converter, 4, 2.4 CARB and Federal EPA Standards, 50-state Legal\">Magnaflow&reg; &ndash; 5582941 Front California Series Catalytic Converter, 4, 2.4 CARB and Federal EPA Standards, 50-state Legal<\/a>\n                        <\/p>\n                    \n                    <div class=\"stp-stars\">\n                        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/q_auto,dpr_auto,f_auto\/carparts\/blog\/widgets\/shop-project\/stars\/star-5.svg\" alt=\"5 Stars\">\n                    <\/div>\n\n                                            <p class=\"stp-price\">$2,076.00<\/p>\n                    \n                    <p><small>Price and rating may change from the time content is published.<\/small><\/p>\n\n                                            <p class=\"stp-cta\">\n                            <a href=\"https:\/\/www.carparts.com\/details\/catalytic-converter\/magnaflow\/m665582941\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Shop Now\">Shop Now<\/a>\n                        <\/p>\n                                    <\/div>\n\n            <\/div>\n        <\/li>\n\n            <\/ul>\n<\/div>\n\n\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\"> 8<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The catalytic converter is tougher than most parts found in your car. That&rsquo;s because it needs that toughness to withstand&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/can-you-drive-without-a-catalytic-converter\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":8735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":[161],"ppma_author":[2607,2985],"class_list":{"0":"post-8734","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","10":"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>Can You Drive Without a Catalytic Converter? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"If you have a bad catalytic converter, can you still drive your car safely? Read on to find out whether you can drive without a catalytic converter or not.\" \/>\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\/can-you-drive-without-a-catalytic-converter\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Can You Drive Without a Catalytic Converter? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"If you have a bad catalytic converter, can you still drive your car safely? Read on to find out whether you can drive without a catalytic converter or not.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/can-you-drive-without-a-catalytic-converter\/\" \/>\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=\"2021-05-03T02:10:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-18T09:16:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/04\/catalytic-converter-of-a-modern-car.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, Richard McCuistian, ASE Certified Master Automobile Technician\" \/>\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=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/can-you-drive-without-a-catalytic-converter\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/can-you-drive-without-a-catalytic-converter\\\/\"},\"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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