{"title":"Catalytic Converter Cleaners","description":"\u003cp\u003eRefresh your exhaust system with FlowRods catalytic converter cleaners. Our 120ml pour-in formula helps reduce carbon buildup and maintain smoother exhaust flow without removing the converter.\u003c\/p\u003e\u003ch2\u003eChoose Your Cleaner Pack\u003c\/h2\u003e\u003cp\u003eExplore single-product pack options, a three-bottle pack (360ml total), or a four-bottle pack (480ml total) for repeat care or multiple vehicles.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNo converter or engine disassembly required\u003c\/li\u003e\n\u003cli\u003eCompatible with gasoline and diesel vehicles\u003c\/li\u003e\n\u003cli\u003eEach 120ml bottle treats up to 30L of fuel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRead the \u003ca href=\"\/products\/3-way-catalytic-cleaner\"\u003ecleaner directions and FAQ\u003c\/a\u003e, or pair cleaner with an \u003ca href=\"\/products\/2-in-1-exhaust-care-kit-o2-sensor-spacer-catalytic-cleaner\"\u003eO2 sensor spacer kit\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"3-way-catalytic-cleaner","title":"3-Way Catalytic Converter Cleaner - 120ml","description":"\u003cp\u003e\u003cstrong\u003ePour it in. Fuel up. Put routine exhaust care back on the schedule.\u003c\/strong\u003e FlowRods 3-Way Catalytic Converter Cleaner is a 120ml pour-in formula designed to help reduce carbon buildup and maintain smoother exhaust flow without removing the converter.\u003c\/p\u003e\n\u003ch2\u003eSimple Care, No Disassembly\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for catalytic converter, fuel-system and exhaust care\u003c\/li\u003e\n\u003cli\u003eCompatible with gasoline and diesel vehicles\u003c\/li\u003e\n\u003cli\u003eOne 120ml bottle treats up to 30L of fuel\u003c\/li\u003e\n\u003cli\u003eAdd directly to a half or full fuel tank\u003c\/li\u003e\n\u003cli\u003eSelect the pack quantity shown in the product options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003ePour one full 120ml bottle into up to 30L of fuel.\u003c\/li\u003e\n\u003cli\u003eDrive normally and follow your regular maintenance schedule.\u003c\/li\u003e\n\u003cli\u003eFor repeat care, use no more than one bottle per week.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003csmall\u003eRoutine maintenance product only. It cannot repair a melted, cracked, blocked or otherwise failed catalytic converter.\u003c\/small\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow much fuel does one 120ml bottle treat?\u003c\/h3\u003e\u003cp\u003eOne 120ml bottle treats up to 30L of fuel. Follow the bottle directions and your vehicle manufacturer's guidance before use.\u003c\/p\u003e\n\u003ch3\u003eDoes catalytic converter cleaner repair a damaged converter?\u003c\/h3\u003e\u003cp\u003eNo. This is a routine maintenance treatment. It cannot repair a melted, cracked, collapsed or otherwise failed converter. Diagnose engine faults and exhaust problems before choosing a treatment.\u003c\/p\u003e\n\u003ch3\u003eIs a cleaner the same as an O2 sensor spacer?\u003c\/h3\u003e\u003cp\u003eNo. The cleaner is a pour-in fuel treatment; an O2 sensor spacer is a mechanical fitting. Check the specifications and intended use of each product separately.\u003c\/p\u003e\n\u003cp\u003eCompare our \u003ca href=\"\/products\/2-in-1-exhaust-care-kit-o2-sensor-spacer-catalytic-cleaner\"\u003eO2 sensor spacer and cleaner kit\u003c\/a\u003e or \u003ca href=\"\/products\/o2-sensor\"\u003eM18x1.5 O2 sensor spacers\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eStart Your Exhaust Care Routine Today\u003c\/h2\u003e\u003cp\u003eChoose the pack quantity above for your maintenance plan. Enjoy straightforward pour-in care, no converter removal, and FlowRods customer support.\u003c\/p\u003e\u003cp\u003eShop with confidence: read our \u003ca href=\"\/policies\/refund-policy\"\u003e30-day return policy for eligible unused items\u003c\/a\u003e and \u003ca href=\"\/policies\/shipping-policy\"\u003eshipping details\u003c\/a\u003e.\u003c\/p\u003e","brand":"FlowRods","offers":[{"title":"2 PCS","offer_id":48354245542109,"sku":"BOOM-004","price":25.98,"currency_code":"USD","in_stock":true},{"title":"1 PC","offer_id":48354245574877,"sku":"BOOM-003","price":15.98,"currency_code":"USD","in_stock":true},{"title":"3 PCS","offer_id":48354245607645,"sku":"BOOM-003+BOOM-004","price":33.98,"currency_code":"USD","in_stock":true},{"title":"4 PCS","offer_id":48354245640413,"sku":"BOOM-004*2","price":39.98,"currency_code":"USD","in_stock":true},{"title":"6 PCS","offer_id":48478170120413,"sku":"BOOM-004*3","price":55.98,"currency_code":"USD","in_stock":true},{"title":"20 PCS【GRAND SLAM】","offer_id":48478178377949,"sku":"BOOM-004*10","price":99.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/4410\/2365\/files\/ChatGPT_Image_2026_8_18_09_43_11_1.png?v=1787398586"},{"product_id":"exhaust-carbon-care-set-副本","title":"Catalytic Converter Cleaner - 4 Pack (480ml)","description":"\u003cp\u003e\u003cstrong\u003eFour bottles. The strongest value for repeat exhaust care.\u003c\/strong\u003e This stock-up pack includes 480ml total of FlowRods pour-in catalytic converter cleaner, ready for multiple treatments or multiple vehicles.\u003c\/p\u003e\n\u003ch2\u003eWhy Buy the 4-Pack\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4 x 120ml bottles - 480ml total\u003c\/li\u003e\n\u003cli\u003eLowest per-bottle price in the FlowRods cleaner range\u003c\/li\u003e\n\u003cli\u003eNo catalytic converter or engine disassembly required\u003c\/li\u003e\n\u003cli\u003eDesigned for gasoline and diesel vehicles\u003c\/li\u003e\n\u003cli\u003eEach bottle treats up to 30L of fuel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003ePour one full 120ml bottle into up to 30L of fuel. Add to a half or full tank and use no more than one bottle per week.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eRoutine maintenance product only. It cannot repair a melted, cracked, blocked or otherwise failed catalytic converter.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003eChoose your pack and read the \u003ca href=\"\/products\/3-way-catalytic-cleaner\"\u003e120ml cleaner directions and FAQ\u003c\/a\u003e before use.\u003c\/p\u003e","brand":"FlowRods","offers":[{"title":"Default Title","offer_id":48354245705949,"sku":"BOOM-004*2","price":39.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/4410\/2365\/files\/ChatGPT_Image_2026_8_18_09_43_12_4.png?v=1787398547"},{"product_id":"3-way-catalytic-cleaner-no-disassembly","title":"Catalytic Converter Cleaner - 3 Pack (360ml)","description":"\u003cp\u003e\u003cstrong\u003eThree ready-to-use treatments in one focused value pack.\u003c\/strong\u003e The FlowRods 3-Pack gives you 360ml total of pour-in catalytic converter cleaner for scheduled exhaust care without removing the converter.\u003c\/p\u003e\n\u003ch2\u003eThree-Bottle Advantage\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3 x 120ml bottles - 360ml total\u003c\/li\u003e\n\u003cli\u003eDesigned to help reduce carbon buildup and maintain smoother exhaust flow\u003c\/li\u003e\n\u003cli\u003eCompatible with gasoline and diesel vehicles\u003c\/li\u003e\n\u003cli\u003eEach bottle treats up to 30L of fuel\u003c\/li\u003e\n\u003cli\u003eNo engine or catalytic converter disassembly required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003ePour one full 120ml bottle into up to 30L of fuel. Add to a half or full tank and use no more than one bottle per week.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eRoutine maintenance product only. It cannot repair a melted, cracked, blocked or otherwise failed catalytic converter.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003eRead the \u003ca href=\"\/products\/3-way-catalytic-cleaner\"\u003e120ml cleaner directions and FAQ\u003c\/a\u003e before use.\u003c\/p\u003e","brand":"FlowRods","offers":[{"title":"Default Title","offer_id":48354245738717,"sku":"BOOM-003+BOOM-004","price":29.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/4410\/2365\/files\/ChatGPT_Image_2026_8_18_09_43_12_3.png?v=1787398679"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0846\/4410\/2365\/collections\/ChatGPT_Image_2026_8_18_09_43_11_1.png?v=1791442675","url":"https:\/\/flowrods.com\/collections\/catalytic-converter-cleaners.oembed","provider":"FlowRods","version":"1.0","type":"link"}