{"product_id":"xforce-1-7-8-tuned-length-headers-3-inch-cat-kit-ford-mustang-gt-s550-h2-fm18-kitb","title":"XForce | 1 7\/8\" Tuned-Length Headers \u0026 3\" Cat Kit | Ford Mustang GT S550 2018–2023 | H2-FM18-KITB","description":"\u003ch2\u003eXForce 1 7\/8\" Tuned-Length Performance Header Kit - Ford Mustang GT S550 (Facelift) - H2-FM18-KITB\u003c\/h2\u003e\n\u003cp\u003eUnleash the full potential of your Ford Mustang GT S550 Facelift with the XForce Performance Header Kit. Engineered with precision for the 5.0L Coyote V8, this 4-1 tuned-length design features large 1 7\/8\" primary pipes that merge into a 3\" outlet, drastically optimizing exhaust scavenging and flow. The kit is equipped with dual 3\" 200-cell high-flow metallic catalytic converters, ensuring unrestricted airflow and significant performance gains in both horsepower and torque. Crafted from durable non-polished stainless steel, this system is built to withstand high-performance driving while delivering the aggressive, raw V8 soundtrack your Mustang deserves. Whether you are hitting the track or the street, XForce delivers the perfect blend of power, efficiency, and style.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the Box?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2x 1 7\/8\" Tuned-Length Stainless Steel Headers (Left \u0026amp; Right)\u003c\/li\u003e\n\u003cli\u003e2x 3\" 200-Cell High-Flow Metallic Catalytic Converters\u003c\/li\u003e\n\u003cli\u003e3\" Pipework after Collector Flanges\u003c\/li\u003e\n\u003cli\u003eInstallation Gaskets \u0026amp; Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cp\u003eThis product offers the following high-performance features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 7\/8\" Tuned-Length Primaries:\u003c\/strong\u003e Meticulously engineered to maximize exhaust gas velocity and engine breathing for the Gen 3 Coyote V8.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 3\" 200-Cell High-Flow Cats:\u003c\/strong\u003e High-performance metallic cores provide far less restriction than factory units for maximum power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-1 Collector Design:\u003c\/strong\u003e Optimized for high-RPM flow and peak horsepower gains.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Construction:\u003c\/strong\u003e Durable, high-grade stainless steel with a functional non-polished finish for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Fitment:\u003c\/strong\u003e Precision-engineered to bolt up to both XForce cat-back systems and the OEM factory cat-back exhaust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cdiv class=\"specs\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMake:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Mustang GT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e S550 (Facelift Models)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 5.0L Coyote V8 (Gen 3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e H2-FM18-KITB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel (Non-Polished)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Style:\u003c\/strong\u003e 4-1 Tuned-Length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Size:\u003c\/strong\u003e 1 7\/8\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCat Size:\u003c\/strong\u003e Dual 3\" (200-Cell Metallic)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe image shown may not reflect the actual product; the system features a non-polished finish.\u003c\/li\u003e\n\u003cli\u003eShipping times may vary depending on destination and stock availability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e A professional ECU tune is required after installation to optimize engine performance and prevent check engine lights.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Applications:\u003c\/h3\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 14px;\"\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-top: 10px;\"\u003e\n\u003ctable style=\"min-width: 900px; border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 2px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eFrom\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eTo\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eBody\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eSeries\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eVariant\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eDrivetrain\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"9\" style=\"padding: 8px 5px; background-color: #e9e9e9; font-weight: bold;\"\u003eFORD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFORD\u003c\/td\u003e\n\u003ctd\u003eMUSTANG\u003c\/td\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eFastback \/ Convertible\u003c\/td\u003e\n\u003ctd\u003eS550 (Facelift)\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003eGT \/ Mach 1\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cstyle\u003e\n.warranty-table-wrapper { overflow-x: auto; margin: 20px 0; }\n.warranty-table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; min-width: 400px; }\n.warranty-table th { background-color: #111; color: #fff; text-align: left; padding: 12px; }\n.warranty-table td { padding: 12px; border-bottom: 1px solid #ddd; }\n.warranty-table tr:nth-child(even) { background-color: #f9f9f9; }\n.warranty-title { font-size: 18px; font-weight: bold; margin-bottom: 10px; font-family: Arial, sans-serif; }\n\u003c\/style\u003e\n\u003cdiv class=\"warranty-title\"\u003eWarranty Information\u003c\/div\u003e\n\u003cdiv class=\"warranty-table-wrapper\"\u003e\n\u003ctable class=\"warranty-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003cth\u003eWarranty Period\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e304 \u0026amp; 201 Stainless Steel Exhaust Systems\u003c\/td\u003e\n\u003ctd\u003e60 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalytic Converters\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectronic Products (Including SmartBox)\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMild Steel \u0026amp; 409 Stainless Steel Exhaust Systems\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMild Steel Headers\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Headers\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal 304 Stainless Steel Mufflers\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal Mild Steel \u0026amp; 409 Stainless Steel Mufflers\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePayment \u0026amp; Security:\u003c\/strong\u003e\u003cbr\u003eYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"X-FORCE Long Tube Headers - Mustang S550\" src=\"https:\/\/www.youtube.com\/embed\/kvHDRhgphMk\" height=\"625\" width=\"1111\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"XForce","offers":[{"title":"Default Title","offer_id":39860841545810,"sku":"H2-FM18-KITB","price":1795.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0271\/7718\/9458\/products\/5bd82e54-2fcb-42cc-916b-5b94cdc71db3_0c9cd5a7-f65e-6000-82b2-1abc67ab0c3d_1_0c9d9fcc-b3f8-6000-9a36-76ae60d4dbba.png?v=1653049958","url":"https:\/\/fastautoparts.com.au\/products\/xforce-1-7-8-tuned-length-headers-3-inch-cat-kit-ford-mustang-gt-s550-h2-fm18-kitb","provider":"Fast Auto Parts Australia","version":"1.0","type":"link"}