{"product_id":"jdy-bmw-g8x-s58-4-inch-downpipe","title":"JDY BMW G8X S58 4-Inch Downpipe","description":"\u003cp data-start=\"592\" data-end=\"1076\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/17612978357640.png?v=1761303880\" alt=\"\" width=\"275\" height=\"225\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/17612978548773.png?v=1761303880\" alt=\"\" width=\"271\" height=\"226\"\u003eEngineered for maximum performance and precision fitment, the?\u003cstrong data-start=\"654\" data-end=\"684\"\u003eJDY 4-inch Downpipe?\u003c\/strong\u003efor BMW S58 engines delivers a significant improvement in exhaust flow, turbo response, and overall efficiency ¡ª while maintaining OEM-level integration and reliability.\u003cbr data-start=\"854\" data-end=\"857\"\u003eAvailable in \u003cstrong data-start=\"870\" data-end=\"886\"\u003eCatless\u003c\/strong\u003e?and \u003cstrong data-start=\"891\" data-end=\"909\"\u003eSport-Cat?\u003c\/strong\u003econfigurations, this system is designed for both \u003cstrong data-start=\"959\" data-end=\"1010\"\u003etrack enthusiasts and performance street builds\u003c\/strong\u003e, offering a perfect balance between power, sound, and durability.\u003c\/p\u003e\n\u003chr data-start=\"1078\" data-end=\"1081\"\u003e\n\u003ch3 data-start=\"1083\" data-end=\"1103\"\u003e\u003cstrong data-start=\"1087\" data-end=\"1103\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4 data-start=\"1105\" data-end=\"1139\"\u003e\u003cstrong data-start=\"1110\" data-end=\"1139\"\u003e1. Seamless Compatibility\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1140\" data-end=\"1432\"\u003eJDY¡¯s 4-inch downpipe is designed to perfectly mate with the factory \u003cstrong data-start=\"1209\" data-end=\"1234\"\u003etwin-turbo S58 system\u003c\/strong\u003e and connect directly to \u003cstrong data-start=\"1259\" data-end=\"1314\"\u003eany aftermarket or OEM mid-pipe or cat-back exhaust\u003c\/strong\u003e without modification.\u003cbr data-start=\"1336\" data-end=\"1339\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-start=\"1434\" data-end=\"1478\"\u003e\u003cstrong data-start=\"1439\" data-end=\"1478\"\u003e2. Premium Materials, Built to Last\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"1479\" data-end=\"1774\"\u003eConstructed from \u003cstrong data-start=\"1496\" data-end=\"1532\"\u003e304 stainless steel?\u003c\/strong\u003e, this system offers exceptional resistance to corrosion, heat, and vibration.\u003cbr data-start=\"1610\" data-end=\"1613\"\u003eWhether exposed to moisture, oil, or extreme exhaust temperatures, the JDY downpipe retains structural integrity, ensuring long-term performance and reliability.\u003c\/p\u003e\n\u003ch4 data-start=\"1776\" data-end=\"1823\"\u003e\u003cstrong data-start=\"1781\" data-end=\"1823\"\u003e3. Optimized Flow \u0026amp; Thermal Efficiency\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul data-start=\"1824\" data-end=\"2352\"\u003e\n\u003cli data-start=\"1824\" data-end=\"1994\"\u003e\n\u003cp data-start=\"1826\" data-end=\"1994\"\u003eBoth Catless and Sport-Cat versions are treated with a \u003cstrong data-start=\"1881\" data-end=\"1925\"\u003ehigh-temperature ceramic thermal coating\u003c\/strong\u003e, minimizing engine bay heat soak and protecting nearby components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1995\" data-end=\"2177\"\u003e\n\u003cp data-start=\"1997\" data-end=\"2177\"\u003eThe \u003cstrong data-start=\"2001\" data-end=\"2019\"\u003eSport-Cat (SN)\u003c\/strong\u003e version features a \u003cstrong data-start=\"2039\" data-end=\"2088\"\u003ecustom 200-cell high-flow catalytic converter\u003c\/strong\u003e offering superior exhaust purification while maintaining optimal flow characteristics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2178\" data-end=\"2352\"\u003e\n\u003cp data-start=\"2180\" data-end=\"2352\"\u003eEach housing is \u003cstrong data-start=\"2196\" data-end=\"2230\"\u003eCAE-analyzed and CFD-optimized\u003c\/strong\u003e to streamline exhaust gas velocity and reduce backpressure ¡ª unlocking faster turbo spool and improved throttle response.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"2354\" data-end=\"2405\"\u003e\u003cstrong data-start=\"2359\" data-end=\"2405\"\u003e4. Precision Engineering \u0026amp; Perfect Fitment\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"2406\" data-end=\"2770\"\u003eUsing \u003cstrong data-start=\"2412\" data-end=\"2450\"\u003elaser 3D scanning and CAD modeling\u003c\/strong\u003e, the JDY S58 downpipe is developed with exacting precision to maximize available space within the tight confines of the G8X chassis.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-start=\"2772\" data-end=\"2819\"\u003e\u003cstrong data-start=\"2777\" data-end=\"2819\"\u003e5. Advanced TIG Welding for Durability\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"2820\" data-end=\"3197\"\u003eEach assembly is \u003cstrong data-start=\"2837\" data-end=\"2878\"\u003eTIG-welded under full argon shielding\u003c\/strong\u003e to prevent oxidation and ensure dense, smooth welds inside and out.\u003cbr data-start=\"2946\" data-end=\"2949\"\u003eAll weld seams undergo \u003cstrong data-start=\"2972\" data-end=\"3020\"\u003eultrasonic and non-destructive testing (NDT)\u003c\/strong\u003e to verify structural integrity. The inner welds are polished for \u003cstrong data-start=\"3086\" data-end=\"3111\"\u003euninterrupted airflow\u003c\/strong\u003e and reduced turbulence ¡ª essential for maintaining stable boost control at high load.\u003c\/p\u003e\n\u003ch4 data-start=\"3199\" data-end=\"3238\"\u003e\u003cstrong data-start=\"3204\" data-end=\"3238\"\u003e6. Universal Fit for LHD \u0026amp; RHD\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-start=\"3239\" data-end=\"3413\"\u003eCompatible with \u003cstrong data-start=\"3255\" data-end=\"3301\"\u003eboth left-hand and right-hand drive models\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"3415\" data-end=\"3418\"\u003e\n\u003ch3 data-start=\"3420\" data-end=\"3452\"\u003e\u003cstrong data-start=\"3424\" data-end=\"3452\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3454\" data-end=\"3973\" class=\"w-fit min-w-(--thread-content-width)\" style=\"width: 100%; height: 190px;\"\u003e\n\u003cthead data-start=\"3454\" data-end=\"3481\"\u003e\n\u003ctr data-start=\"3454\" data-end=\"3481\" style=\"height: 19px;\"\u003e\n\u003cth data-start=\"3454\" data-end=\"3470\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3470\" data-end=\"3481\" data-col-size=\"sm\" style=\"width: 54.836697%; height: 19px;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3512\" data-end=\"3973\"\u003e\n\u003ctr data-start=\"3512\" data-end=\"3563\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3512\" data-end=\"3527\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3514\" data-end=\"3526\"\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3527\" data-end=\"3563\" style=\"width: 54.836697%; height: 19px;\"\u003e304 Stainless Steel (06Cr19Ni10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3564\" data-end=\"3604\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3564\" data-end=\"3583\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3566\" data-end=\"3582\"\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3583\" data-end=\"3604\" style=\"width: 54.836697%; height: 19px;\"\u003eCast + TIG Welded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3605\" data-end=\"3657\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3605\" data-end=\"3635\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3607\" data-end=\"3634\"\u003eMain Diameter (Catless)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3635\" data-end=\"3657\" style=\"width: 54.836697%; height: 19px;\"\u003e4.0 in (¡Ö101.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3658\" data-end=\"3710\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3658\" data-end=\"3690\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3660\" data-end=\"3689\"\u003eMain Diameter (Sport-Cat)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3690\" data-end=\"3710\" style=\"width: 54.836697%; height: 19px;\"\u003e5.0 in (¡Ö130 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3711\" data-end=\"3753\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3711\" data-end=\"3733\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3713\" data-end=\"3732\"\u003eOutlet Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3733\" data-end=\"3753\" style=\"width: 54.836697%; height: 19px;\"\u003e2.75 in (¡Ö70 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3754\" data-end=\"3820\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3754\" data-end=\"3779\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3756\" data-end=\"3778\"\u003eCatalyst Type (SN)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3779\" data-end=\"3820\" style=\"width: 54.836697%; height: 19px;\"\u003e200-cell high-flow metallic substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3821\" data-end=\"3871\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3821\" data-end=\"3843\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3823\" data-end=\"3842\"\u003eThermal Coating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3843\" data-end=\"3871\" style=\"width: 54.836697%; height: 19px;\"\u003eHigh-temperature ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3872\" data-end=\"3921\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3872\" data-end=\"3886\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3874\" data-end=\"3885\"\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3886\" data-end=\"3921\" style=\"width: 54.836697%; height: 19px;\"\u003eDirect bolt-on, no modification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3922\" data-end=\"3973\" style=\"height: 19px;\"\u003e\n\u003ctd data-start=\"3922\" data-end=\"3937\" data-col-size=\"sm\" style=\"width: 42.388238%; height: 19px;\"\u003e\u003cstrong data-start=\"3924\" data-end=\"3936\"\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3937\" data-end=\"3973\" style=\"width: 54.836697%; height: 19px;\"\u003e12 months manufacturing warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"3975\" data-end=\"3978\"\u003e\n\u003cp data-start=\"4014\" data-end=\"4294\"\u003e\u003cstrong data-start=\"3984\" data-end=\"4012\"\u003e\u003cstrong data-start=\"283\" data-end=\"305\"\u003eCompatible Models:\u003c\/strong\u003e\u003cbr data-start=\"305\" data-end=\"308\"\u003eBMW M3 G80 (Sedan, 2019¨C ) \/ M3 G81 (Touring, 2021¨C )\u003cbr data-start=\"361\" data-end=\"364\"\u003eBMW M4 G82 (Coupe, 2020¨C ) \/ M4 G83 (Convertible, 2020¨C )\u003cbr data-start=\"421\" data-end=\"424\"\u003eBMW M2 G87 (Coupe, 2023¨C )\u003cbr data-start=\"540\" data-end=\"543\"\u003e\u003cstrong data-start=\"543\" data-end=\"567\"\u003eLHD \/ RHD Compatible\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"Yes - 200 Cell","offer_id":45348218863804,"sku":"S58-253-JDY-PA","price":2200.0,"currency_code":"AUD","in_stock":false},{"title":"No","offer_id":45348218896572,"sku":"S58-253-04E-PA","price":1650.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/3128\/3644\/files\/S58Downpipe-6.jpg?v=1761308728","url":"https:\/\/www.jdyperformance.com.au\/products\/jdy-bmw-g8x-s58-4-inch-downpipe","provider":"JDY Performance AU","version":"1.0","type":"link"}