{"product_id":"ceramic-catalytic-converter-130mm-1","title":"Ceramic Catalytic Converter 130mm","description":"\u003cstyle\u003e\n  .cat-faq-module {\n    max-width: 100%;\n    margin: 30px 0;\n    font-family: 'Segoe UI', Roboto, Arial, sans-serif;\n    background: #ffffff;\n    border-radius: 28px;\n    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);\n    border: 1px solid #edf2f7;\n    padding: 30px 32px 10px 32px;\n    box-sizing: border-box;\n  }\n  .cat-faq-module .module-header {\n    display: flex;\n    align-items: center;\n    gap: 14px;\n    padding-bottom: 18px;\n    border-bottom: 3px solid #f0f4fa;\n    margin-bottom: 20px;\n  }\n  .cat-faq-module .module-header h2 {\n    font-size: 28px;\n    font-weight: 700;\n    color: #0b1a33;\n    margin: 0;\n    letter-spacing: -0.3px;\n  }\n  .cat-faq-module .module-header .badge {\n    background: #0b1a33;\n    color: #fff;\n    font-size: 14px;\n    font-weight: 600;\n    padding: 2px 18px;\n    border-radius: 30px;\n    letter-spacing: 0.3px;\n  }\n  .cat-faq-module details {\n    display: block;\n    margin-bottom: 6px;\n    border-bottom: 1px solid #eef2f6;\n    padding: 8px 0;\n    transition: all 0.2s ease;\n  }\n  .cat-faq-module details:last-of-type {\n    border-bottom: none;\n  }\n  .cat-faq-module summary {\n    display: flex;\n    align-items: center;\n    cursor: pointer;\n    font-size: 17px;\n    font-weight: 600;\n    color: #0b1a33;\n    padding: 10px 4px 10px 0;\n    list-style: none;\n    position: relative;\n    user-select: none;\n    gap: 12px;\n  }\n  .cat-faq-module summary::-webkit-details-marker {\n    display: none;\n  }\n  .cat-faq-module summary::before {\n    content: \"▶\";\n    font-size: 14px;\n    color: #1a73e8;\n    transition: transform 0.25s ease;\n    display: inline-block;\n    width: 20px;\n    font-weight: 400;\n  }\n  .cat-faq-module details[open] \u003e summary::before {\n    transform: rotate(90deg);\n  }\n  .cat-faq-module summary .q-mark {\n    background: #eef5ff;\n    color: #1a73e8;\n    font-weight: 700;\n    font-size: 14px;\n    padding: 0 12px;\n    border-radius: 20px;\n    line-height: 26px;\n  }\n  .cat-faq-module .answer-wrap {\n    padding: 8px 20px 16px 36px;\n    color: #2c3e50;\n    font-size: 15.5px;\n    line-height: 1.75;\n  }\n  .cat-faq-module .answer-wrap p {\n    margin: 0 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap p:last-child {\n    margin-bottom: 0;\n  }\n  .cat-faq-module .answer-wrap ul, \n  .cat-faq-module .answer-wrap ol {\n    padding-left: 22px;\n    margin: 6px 0 12px 0;\n  }\n  .cat-faq-module .answer-wrap li {\n    margin-bottom: 4px;\n  }\n  .cat-faq-module .answer-wrap strong {\n    color: #0b1a33;\n  }\n  .cat-faq-module .warning-box {\n    background: #f9fcff;\n    border-left: 5px solid #1a73e8;\n    padding: 14px 22px;\n    border-radius: 12px;\n    margin: 12px 0 4px 0;\n    font-size: 15px;\n  }\n  .cat-faq-module table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 14.5px;\n    margin: 12px 0;\n  }\n  .cat-faq-module table th,\n  .cat-faq-module table td {\n    border: 1px solid #dce1e9;\n    padding: 10px 8px;\n    text-align: left;\n  }\n  .cat-faq-module table th {\n    background: #f0f4fa;\n  }\n  .cat-faq-module .contact-item {\n    margin-bottom: 10px;\n    padding-left: 4px;\n  }\n  .cat-faq-module .contact-item strong {\n    display: inline-block;\n    min-width: 60px;\n  }\n  @media (max-width: 640px) {\n    .cat-faq-module { padding: 18px 16px 6px 16px; }\n    .cat-faq-module .module-header h2 { font-size: 22px; }\n    .cat-faq-module summary { font-size: 15px; }\n    .cat-faq-module .answer-wrap { padding: 6px 8px 12px 20px; font-size: 14.5px; }\n    .cat-faq-module table { font-size: 13px; }\n    .cat-faq-module table th, .cat-faq-module table td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"cat-faq-module\"\u003e\n  \u003cdiv class=\"module-header\"\u003e\n    \u003ch2\u003e Product Description \u003c\/h2\u003e\n    \u003cspan class=\"badge\"\u003eClick to expand\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Q1 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ1\u003c\/span\u003e What is a ceramic catalytic converter substrate?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003e\u003cstrong\u003e🧱 Main Material: Why Cordierite?\u003c\/strong\u003e\u003cbr\u003e\n      The vast majority of ceramic substrates are made from a ceramic material called \u003cstrong\u003ecordierite\u003c\/strong\u003e (chemical formula: 2MgO·2Al₂O₃·5SiO₂).\u003c\/p\u003e\n      \u003cp\u003eIt is chosen for three key properties:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh temperature resistance:\u003c\/strong\u003e Exhaust gas temperatures are very high, but cordierite can withstand continuous operation up to 1200°C, making it suitable for extreme environments.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eThermal shock resistance:\u003c\/strong\u003e Its very low coefficient of thermal expansion means it is unlikely to crack from rapid temperature changes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHigh mechanical strength:\u003c\/strong\u003e It has sufficient strength to withstand vibration and impacts during driving.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003e🏗️ Core Structure: Why Honeycomb?\u003c\/strong\u003e\u003cbr\u003e\n      The substrate is designed as a honeycomb to maximize the chemical reaction area within a limited space.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eThin walls, many cells:\u003c\/strong\u003e The cell walls are very thin. Mainstream products now have cell densities of 400 or 600 CPSI (cells per square inch).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eExtreme pursuit:\u003c\/strong\u003e Advanced technologies can achieve densities up to 1200 CPSI with wall thicknesses as thin as 0.05 mm.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThis design minimizes exhaust backpressure while greatly increasing the contact opportunity between exhaust gases and the catalyst.\u003c\/p\u003e\n\n      \u003cp\u003e\u003cstrong\u003e⚙️ Functional Role: Carrier, Not Catalyst\u003c\/strong\u003e\u003cbr\u003e\n      The substrate itself is inert and does not directly participate in reactions. Its role is as a \"skeleton\":\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSupports the washcoat:\u003c\/strong\u003e A porous active coating (mainly γ-alumina) is applied to the substrate surface. This rough, porous layer increases the actual reaction area by nearly 7000 times compared to the substrate's geometric surface area.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDisperses precious metals:\u003c\/strong\u003e The true \"purification heroes\" – precious metals such as platinum (Pt), rhodium (Rh), and palladium (Pd) – are highly dispersed on this coating to maximize catalytic effect.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003e⚠️ Important Note: Limitations of Ceramic Substrates\u003c\/strong\u003e\u003cbr\u003e\n      Despite excellent performance, ceramic substrates have some inherent drawbacks:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBrittleness:\u003c\/strong\u003e Ceramic is relatively brittle and can break under strong impact (e.g., bottoming out).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClogging \/ \"Poisoning\":\u003c\/strong\u003e Lead (Pb), sulfur (S) from low-quality fuel, and phosphorus (P) from engine oil can adhere to the cell walls, causing clogging or catalyst deactivation – known as \"catalyst poisoning\".\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMelting at high temperature:\u003c\/strong\u003e If the engine runs abnormally causing exhaust temperatures to exceed about 950°C, the ceramic substrate itself may sinter or melt, leading to permanent damage.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q2 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ2\u003c\/span\u003e Ceramic muffler VS Ceramic catalytic ?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eThe \u003cstrong\u003eceramic catalytic converter core\u003c\/strong\u003e is a \"chemical laboratory\" that purifies exhaust gases, while the \u003cstrong\u003eceramic muffler core\u003c\/strong\u003e is a \"physical soundproofing chamber\" that reduces noise. Their core differences are as follows:\u003c\/p\u003e\n\n      \u003ctable\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth\u003eAspect\u003c\/th\u003e\n            \u003cth\u003eCeramic Catalytic Converter Core (coated)\u003c\/th\u003e\n            \u003cth\u003eCeramic Muffler Core (uncoated)\u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eCore Function\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003ePurifies exhaust gases by converting harmful substances (CO, HC, NOx) into harmless ones via chemical reactions.\u003c\/td\u003e\n            \u003ctd\u003eReduces exhaust noise through physical absorption or interference of sound waves.\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eWorking Principle\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eCatalytic reactions: uses a precious metal coating (Pt, Rh, Pd) as a catalyst to promote oxidation and reduction reactions of CO, HC, and NOx.\u003c\/td\u003e\n            \u003ctd\u003ePhysical sound absorption: uses the sound-absorbing properties of porous ceramic or reflection\/interference in specific chamber structures to dissipate sound energy.\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eSurface Coating\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eYes – coated with an active layer containing precious metals (Pt, Rh, Pd). This coating is key to the purification function.\u003c\/td\u003e\n            \u003ctd\u003eNone – the core is purely ceramic material with no catalytic coating.\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eStructural Characteristics\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigh-precision honeycomb structure with straight, thin walls to provide a huge reaction surface area within a limited volume.\u003c\/td\u003e\n            \u003ctd\u003eVaried – can be porous foam or complex chambers with perforations, designed to optimise acoustic performance.\u003c\/td\u003e\n          \u003c\/tr\u003e\n          \u003ctr\u003e\n            \u003ctd\u003e\u003cstrong\u003eEffect on Exhaust Flow\u003c\/strong\u003e\u003c\/td\u003e\n            \u003ctd\u003eHigher resistance – the dense honeycomb cells significantly increase exhaust backpressure.\u003c\/td\u003e\n            \u003ctd\u003eRelatively lower resistance – design balances sound reduction with exhaust flow.\u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n\n      \u003cp\u003e\u003cstrong\u003e🔬 Ceramic Catalytic Converter Core – the \"Chemical Laboratory\" of Exhaust Treatment\u003c\/strong\u003e\u003cbr\u003e\n      This core is the most essential purification device in the entire exhaust system.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCore mission:\u003c\/strong\u003e Its only and most important task is to purify harmful gases from the engine. It simultaneously treats three main pollutants: carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) – hence the name \"three‑way\".\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow it works:\u003c\/strong\u003e It is essentially a carrier. It is inert by itself; the key lies in the precious metal catalyst coating (Pt, Rh, Pd) applied to its surface. When hot exhaust gases pass through the honeycomb channels, the harmful gases undergo oxidation and reduction reactions under the catalyst's influence, converting into harmless CO₂, H₂O, and N₂.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStructural features:\u003c\/strong\u003e A precision honeycomb ceramic block with thousands of parallel, straight channels. This design greatly increases the contact area between exhaust gases and the catalyst, thus improving purification efficiency.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003e🔇 Ceramic Muffler Core (uncoated) – the \"Physical Sound Absorber\"\u003c\/strong\u003e\u003cbr\u003e\n      This is typically the core component inside the muffler at the end of the exhaust system.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCore mission:\u003c\/strong\u003e Specifically responsible for reducing exhaust noise. When the exhaust valve opens, it creates huge pressure waves (noise), and the muffler core's job is to eliminate that noise.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow it works:\u003c\/strong\u003e It involves no chemical reactions at all. Its sound‑reduction principle is purely physical:\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSound absorption:\u003c\/strong\u003e As exhaust gases pass through the porous ceramic, sound waves cause air vibration within the pores, and friction against the pore walls converts sound energy into heat energy, which is dissipated.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eReflection and interference:\u003c\/strong\u003e By designing specific chambers and baffles, sound waves reflect multiple times and interfere with each other, cancelling out noise.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eStructural features:\u003c\/strong\u003e Varied – it can be simple porous foam ceramic, or a complex structure with multiple chambers and perforated tubes. The fact that it has \u003cstrong\u003eno coating\u003c\/strong\u003e means it relies solely on physical structure for sound reduction.\u003c\/li\u003e\n      \u003c\/ul\u003e\n\n      \u003cp\u003e\u003cstrong\u003e📝 Summary\u003c\/strong\u003e\u003cbr\u003e\n      Think of them as two workers on different stages of the exhaust system's \"production line\":\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eThe \u003cstrong\u003eceramic catalytic converter core (coated)\u003c\/strong\u003e is a \u003cstrong\u003echemist\u003c\/strong\u003e – it actively transforms toxic substances into harmless ones using its precious metal coating.\u003c\/li\u003e\n        \u003cli\u003eThe \u003cstrong\u003eceramic muffler core (uncoated)\u003c\/strong\u003e is a \u003cstrong\u003ephysicist\u003c\/strong\u003e – it does not change the gas composition, but merely absorbs or cancels out sound wave energy using its porous structure or chambers.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q3 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ3\u003c\/span\u003e How do I confirm my catalyst size?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eTo confirm the correct catalyst dimensions for your vehicle, you can use any of the following methods:\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eMeasure the housing circumference\u003c\/strong\u003e — Measure the outer circumference of the converter housing, then calculate the diameter. From that, you can derive the approximate size of the internal catalyst core.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCreate a profile drawing for irregular shapes\u003c\/strong\u003e — If the catalyst has a non‑standard (irregular) shape, you will need to produce a detailed profile drawing. You can use CAD software or other design tools. Alternatively, you can place the catalyst on an X‑Y coordinate system, divide the four right‑angle quadrants into equal 15° increments, then measure the radial distance from the origin (0 point) to the catalyst's edge along each radial line. Record these measurements to map the precise shape.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSend a physical sample to us\u003c\/strong\u003e — If the above methods are not convenient, you can simply send us a sample of your original catalyst. We will measure it accurately and confirm the correct size for you.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cp\u003eWhichever method you choose, we recommend double‑checking your measurements before placing an order to ensure a perfect fit.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q4 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ4\u003c\/span\u003e How does a catalytic converter work?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eA \u003cstrong\u003ethree-way catalytic converter\u003c\/strong\u003e (TWC) simultaneously converts three primary harmful exhaust pollutants into less harmful substances through oxidation and reduction reactions:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCarbon Monoxide (CO)\u003c\/strong\u003e → oxidized into Carbon Dioxide (CO₂)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eUnburned Hydrocarbons (HC)\u003c\/strong\u003e → oxidized into Carbon Dioxide (CO₂) and Water (H₂O)\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNitrogen Oxides (NOx)\u003c\/strong\u003e → reduced into Nitrogen (N₂) and Oxygen (O₂)\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe ceramic honeycomb substrate is coated with a \"washcoat\" containing precious metal catalysts (platinum, palladium, rhodium). As exhaust gases pass through the honeycomb channels at high temperature (around 300°C), these metals catalyze the chemical reactions that convert approximately 98% of harmful emissions into harmless gases. This process is essential for meeting global emissions standards and protecting air quality.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q5 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ5\u003c\/span\u003e Does this meet Euro 3-6 emissions standards?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYes. Our ceramic catalytic converter substrates are designed to comply with \u003cstrong\u003eEuro 3, Euro 4, Euro 5, and Euro 6\u003c\/strong\u003e emissions standards. When properly installed on a vehicle that is otherwise in good mechanical condition, our substrates support the vehicle's ability to meet the emissions limits for which it was originally certified. Euro 3 was introduced in 2000, with each subsequent standard imposing stricter limits — our substrates are engineered to meet the requirements across this range.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Emissions compliance depends on the complete vehicle system, not just the catalytic converter. Proper engine tuning, oxygen sensor function, and overall engine health are also critical factors.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q6 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ6\u003c\/span\u003e What is your warranty policy?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur warranty policy differs by product type:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCeramic Muffler Cores\u003c\/strong\u003e — No warranty provided. These are mechanical components subject to wear and external factors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCeramic Catalytic Converter Substrates\u003c\/strong\u003e — Covered by a \u003cstrong\u003e2-year \/ 50,000 km (approximately 31,000 miles) warranty\u003c\/strong\u003e against manufacturing defects. This warranty covers the ceramic substrate structure and catalytic coating integrity under normal use conditions.\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003eThe warranty does not cover damage caused by improper installation, engine misfire, use of leaded fuel, physical impact damage, or contamination from oil\/coolant. Please retain your purchase receipt and installation records for warranty claims.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q7 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ7\u003c\/span\u003e Installation guide for ceramic substrate cores\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur ceramic catalytic converter substrates are sold as replacement \u003cstrong\u003einternal cores\u003c\/strong\u003e (the \"guts\" of the converter). Professional installation is strongly recommended. Please follow these general guidelines:\u003c\/p\u003e\n      \u003col\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSafety first\u003c\/strong\u003e — Allow the exhaust system to cool completely. Disconnect the negative battery terminal before beginning work.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRemove the old converter housing\u003c\/strong\u003e — Carefully remove the catalytic converter assembly from the vehicle's exhaust system.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eOpen the housing\u003c\/strong\u003e — The converter housing (metal shell) must be opened to access and remove the old substrate. This typically requires cutting or splitting the shell along the seam.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eRemove the old substrate\u003c\/strong\u003e — Carefully extract the old, degraded ceramic substrate and any mounting mat material from the housing.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClean the housing interior\u003c\/strong\u003e — Ensure the inside surface of the metal shell is clean and free of debris, dust, grease, or any old mat residue.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstall the new substrate\u003c\/strong\u003e — Wrap the new ceramic substrate with the appropriate intumescent mounting mat (sold separately) and insert it into the housing. Proper alignment and positioning are crucial for optimal performance.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eClose and weld the housing\u003c\/strong\u003e — Securely weld or seal the housing closed following proper exhaust welding procedures.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eReinstall the converter\u003c\/strong\u003e — Mount the reassembled catalytic converter back onto the vehicle's exhaust system with new gaskets and hardware.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eTest operation\u003c\/strong\u003e — Reconnect the battery, start the engine, and check for exhaust leaks and proper operation. Allow the vehicle to reach operating temperature and verify that the check engine light remains off.\u003c\/li\u003e\n      \u003c\/ol\u003e\n      \u003cdiv class=\"warning-box\"\u003e\n        ⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e Always follow your vehicle manufacturer's service procedures. Improper installation may damage the substrate, reduce performance, void the warranty, and create safety hazards. We recommend having this work performed by a certified automotive technician.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q8 – 新增：发货\/运输时间 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ8\u003c\/span\u003e What are your shipping \u0026amp; delivery times?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur shipping and delivery times depend on stock availability:\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we have stock:\u003c\/strong\u003e We ship within 1–3 business days. Delivery typically takes \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eIf we are out of stock:\u003c\/strong\u003e Production and handling take 15–20 business days, then delivery takes approximately \u003cstrong\u003e12–15 days\u003c\/strong\u003e (including customs clearance and duties).\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cstrong\u003eAll shipments are sent DDP (Delivered Duty Paid)\u003c\/strong\u003e – this means that all customs clearance fees, import duties, and taxes are already included in the total price you pay. You will not be charged any extra fees upon delivery.\u003c\/p\u003e\n      \u003cp\u003eIf you need faster delivery, please contact us to arrange expedited shipping via \u003cstrong\u003eDHL, UPS, or FEDEX\u003c\/strong\u003e (additional charges apply).\u003c\/p\u003e\n      \u003cp\u003eWe will provide you with a tracking number as soon as your order is dispatched.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q9 – 新增：联系我们 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ9\u003c\/span\u003e How can I contact you?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eYou can reach our team directly via WhatsApp or email. We are happy to assist with any questions about products, sizing, orders, or technical support.\u003c\/p\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eDavin\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613335696939\" target=\"_blank\"\u003e+86 133 3569 6939\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:KSRCAT@proton.me\"\u003eKSRCAT@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eAlison\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8615082475717\" target=\"_blank\"\u003e+86 150 8247 5717\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Ksrcatalytic@gmail.com\"\u003eKsrcatalytic@gmail.com\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"contact-item\"\u003e\n        \u003cstrong\u003eMia\u003c\/strong\u003e\u003cbr\u003e\n        WhatsApp: \u003ca href=\"https:\/\/wa.me\/8613681711685\" target=\"_blank\"\u003e+86 136 8171 1685\u003c\/a\u003e\u003cbr\u003e\n        E-mail: \u003ca href=\"mailto:Kesairay@proton.me\"\u003eKesairay@proton.me\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cp\u003eWe typically respond within 24 hours (Monday–Saturday). Please include your order number or vehicle details for faster assistance.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- Q10 – 新增：公司总部地址 --\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003e\u003cspan class=\"q-mark\"\u003eQ10\u003c\/span\u003e Where is your headquarters located?\u003c\/summary\u003e\n    \u003cdiv class=\"answer-wrap\"\u003e\n      \u003cp\u003eOur company headquarters is located at:\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eBuilding C, Zhongguan Innovation Center, Dongcheng 2nd Road, Pujiang Town, Minhang District, Shanghai, China\u003c\/strong\u003e\u003c\/p\u003e\n      \u003cp\u003eWe welcome business visits by appointment. Please contact us in advance to arrange a suitable time.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"SVIPCAT Store","offers":[{"title":"Ceramic silencer \/ 400 \/ 130x75mm","offer_id":54396507193690,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic silencer \/ 400 \/ 130x90mm","offer_id":54396507226458,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic silencer \/ 400 \/ 130x100mm","offer_id":54396507259226,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic silencer \/ 400 \/ 130x120mm","offer_id":54396507291994,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic catalyst \/ 400 \/ 130x75mm","offer_id":54396507324762,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic catalyst \/ 400 \/ 130x90mm","offer_id":54396507357530,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic catalyst \/ 400 \/ 130x100mm","offer_id":54396507390298,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false},{"title":"Ceramic catalyst \/ 400 \/ 130x120mm","offer_id":54396507423066,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/5164\/3226\/files\/Ceramic_Catalytic_Converter_65mm_800x800_6592a130-c5d9-44b3-9816-2b9033235d8c.jpg?v=1783419110","url":"https:\/\/www.svipcat.com\/products\/ceramic-catalytic-converter-130mm-1","provider":"SVIPCAT Store","version":"1.0","type":"link"}