{"product_id":"jdy-b58-gen2-downpipe-ceramic-coated","title":"JDY B58 Gen2 Downpipe Ceramic coated","description":"\u003cp data-start=\"130\" data-end=\"452\"\u003eDesigned for the factory turbocharger setup, this downpipe improves exhaust efficiency, reduces restriction, and supports higher power output while maintaining excellent fitment and durability.\u003c\/p\u003e\n\u003cp data-start=\"454\" data-end=\"687\"\u003eManufactured from high-quality \u003cstrong data-start=\"485\" data-end=\"508\"\u003e304 stainless steel\u003c\/strong\u003e using a combination of \u003cstrong data-start=\"532\" data-end=\"565\"\u003eprecision casting and welding\u003c\/strong\u003e, the JDY B58 Downpipe is built for strength, heat resistance, and long-term reliability in high-performance applications.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"689\" data-end=\"704\"\u003eKey Features\u003c\/h2\u003e\n\u003ch3 data-section-id=\"8j4ajv\" data-start=\"706\" data-end=\"735\"\u003e4.5-Inch High-Flow Design\u003c\/h3\u003e\n\u003cp data-start=\"737\" data-end=\"1038\"\u003eThe JDY B58 Downpipe features a large \u003cstrong data-start=\"775\" data-end=\"807\"\u003e4.5-inch turbo outlet design\u003c\/strong\u003e, providing improved exhaust flow compared with many standard aftermarket options. The increased diameter helps reduce back pressure and allows the B58 engine to breathe more efficiently, especially on tuned or higher-power setups.\u003c\/p\u003e\n\u003ch3 data-section-id=\"hrnyzm\" data-start=\"1040\" data-end=\"1086\"\u003eCast Construction for Strength and Fitment\u003c\/h3\u003e\n\u003cp data-start=\"1088\" data-end=\"1401\"\u003eThe main section is produced using a cast design, allowing smoother internal transitions and better packaging around the turbocharger area. Compared with fully welded designs, the cast section offers improved sealing performance and helps reduce the risk of cracking or exhaust leaks under high heat and pressure.\u003c\/p\u003e\n\u003ch3 data-section-id=\"8gftpb\" data-start=\"1403\" data-end=\"1446\"\u003eAvailable in Catted and Catless Options\u003c\/h3\u003e\n\u003cp data-start=\"1448\" data-end=\"1654\"\u003eThe catted version uses a large \u003cstrong data-start=\"1480\" data-end=\"1534\"\u003e200-cell catalytic converter with a 130mm diameter\u003c\/strong\u003e, providing increased flow area while keeping the catalyst positioned close to the turbocharger for improved efficiency.\u003c\/p\u003e\n\u003cp data-start=\"1656\" data-end=\"1772\"\u003eThe catless version is designed for maximum exhaust flow and is intended for racing or off-road use where permitted.\u003c\/p\u003e\n\u003ch3 data-section-id=\"wk1yzg\" data-start=\"1774\" data-end=\"1803\"\u003eSmooth Internal Flow Path\u003c\/h3\u003e\n\u003cp data-start=\"1805\" data-end=\"1998\"\u003eThe cast runner design provides a smooth and consistent exhaust path with fewer sharp transitions. This helps reduce turbulence, improve exhaust gas velocity, and support better turbo response.\u003c\/p\u003e\n\u003ch3 data-section-id=\"8hr01q\" data-start=\"2000\" data-end=\"2030\"\u003eWide Fitment Compatibility\u003c\/h3\u003e\n\u003cp data-start=\"2032\" data-end=\"2234\"\u003eDesigned to fit B58 Gen2-powered BMW M240\/340\/440 and Toyota GR Supra applications. The downpipe is available to support both left-hand-drive and right-hand-drive vehicle layouts, depending on the selected version.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1crgxgj\" data-start=\"2236\" data-end=\"2265\"\u003eOEM Midpipe Compatibility\u003c\/h3\u003e\n\u003cp data-start=\"2267\" data-end=\"2446\"\u003eThe outlet features an \u003cstrong data-start=\"2290\" data-end=\"2335\"\u003e89mm internal to 80mm external transition\u003c\/strong\u003e, designed to connect with the factory-size midpipe section for easier installation and improved compatibility.\u003c\/p\u003e\n\u003ch3 data-section-id=\"93tq85\" data-start=\"2448\" data-end=\"2473\"\u003eTIG welded Back Purged\u003c\/h3\u003e\n\u003cp data-start=\"2475\" data-end=\"2620\"\u003eWelded sections are inspected to ensure strength, durability, and proper sealing, helping deliver consistent product quality for performance use.\u003c\/p\u003e\n\u003ch2 data-section-id=\"3ipjz4\" data-start=\"2622\" data-end=\"2647\"\u003eProduct Specifications\u003c\/h2\u003e\n\u003cp data-start=\"2649\" data-end=\"3118\"\u003e\u003cstrong data-start=\"2649\" data-end=\"2666\"\u003eProduct Name:\u003c\/strong\u003e JDY B58 Downpipe\u003cbr data-start=\"2683\" data-end=\"2686\"\u003e\u003cstrong data-start=\"2686\" data-end=\"2698\"\u003eFitment:\u003c\/strong\u003e BMW M240\/340\/440 \/ Toyota GR Supra with B58 Gen2 engine\u003cbr data-start=\"2742\" data-end=\"2745\"\u003e\u003cstrong data-start=\"2745\" data-end=\"2758\"\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003cbr data-start=\"2778\" data-end=\"2781\"\u003e\u003cstrong data-start=\"2781\" data-end=\"2798\"\u003eConstruction:\u003c\/strong\u003e Cast +TIG Welded\u003cbr data-start=\"2812\" data-end=\"2815\"\u003e\u003cstrong data-start=\"2815\" data-end=\"2837\"\u003eTurbo Application:\u003c\/strong\u003e Factory B58 Turbocharger\u003cbr data-start=\"2862\" data-end=\"2865\"\u003e\u003cstrong data-start=\"2865\" data-end=\"2883\"\u003eMain Diameter:\u003c\/strong\u003e 4.5-inch\u003cbr data-start=\"2892\" data-end=\"2895\"\u003e\u003cstrong data-start=\"2895\" data-end=\"2913\"\u003eCatted Option:\u003c\/strong\u003e 200-cell catalytic converter, 130mm diameter\u003cbr data-start=\"2958\" data-end=\"2961\"\u003e\u003cstrong data-start=\"2961\" data-end=\"2977\"\u003eOutlet Size:\u003c\/strong\u003e 89mm internal to 80mm external transition\u003cbr data-start=\"3019\" data-end=\"3022\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"JDY Performance","offers":[{"title":"yes","offer_id":58160290496672,"sku":null,"price":975.0,"currency_code":"USD","in_stock":true},{"title":"no","offer_id":58160290529440,"sku":null,"price":675.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0478\/7060\/7520\/files\/5_cf715194-0cc1-4a9a-930d-0060c2d29f19.jpg?v=1783585034","url":"https:\/\/jdyperformance.com\/pt-cn\/products\/jdy-b58-gen2-downpipe-ceramic-coated","provider":"JDY Performance","version":"1.0","type":"link"}