{"product_id":"bull-boost-performance-sr20det-t3-t4-twin-scroll-44mm-top-mount-turbo-manifold-kit-for-s13-s14-s15-180sx-240sx","title":"BULL BOOST PERFORMANCE SR20DET T3\/T4 Twin Scroll 44mm Top Mount Turbo Manifold Kit for S13 S14 S15 180SX 240SX","description":"\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"7ca9947e-6be2-4c77-a443-35e481cfa433\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"137\"\u003e\u003cstrong data-start=\"0\" data-end=\"114\"\u003eBULL BOOST PERFORMANCE SR20DET T3\/T4 Twin Scroll 44mm Top Mount Turbo Manifold Kit for S13 S14 S15 180SX 240SX\u003c\/strong\u003e\u003cbr data-start=\"114\" data-end=\"117\"\u003e\u003cstrong data-start=\"117\" data-end=\"137\"\u003ePart Number: 46503812104412\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"139\" data-end=\"476\"\u003eTake your SR20DET build to the next level with this high-performance Bull Boost Performance T3\/T4 twin scroll top mount turbo manifold kit. Designed for serious street, drift, and track applications, this manifold is engineered to maximize exhaust flow efficiency, improve turbo response, and support high-horsepower turbocharged setups.\u003c\/p\u003e\n\u003cp data-start=\"478\" data-end=\"851\"\u003eConstructed from heavy-duty \u003cstrong data-start=\"506\" data-end=\"547\"\u003e304 stainless steel thick-wall tubing\u003c\/strong\u003e, this manifold is built to withstand extreme heat and high boost pressures while resisting cracking under demanding driving conditions. The true twin scroll design helps optimize exhaust pulse separation, improving turbocharger efficiency and promoting faster spool characteristics across the RPM range.\u003c\/p\u003e\n\u003cp data-start=\"853\" data-end=\"1150\"\u003eEach manifold is precision TIG welded and back-purged to ensure maximum weld penetration, durability, and long-term reliability. The true merge collector design improves exhaust gas velocity and flow balance into the turbocharger, making this manifold ideal for performance-focused SR20DET builds.\u003c\/p\u003e\n\u003cp data-start=\"1152\" data-end=\"1348\"\u003eDesigned around a top-mount configuration, this setup offers aggressive engine bay styling while allowing increased flexibility for larger turbocharger combinations and external wastegate routing.\u003c\/p\u003e\n\u003cp data-start=\"1350\" data-end=\"1384\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1384\"\u003eKey Features \u0026amp; Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1385\" data-end=\"1747\"\u003e\n\u003cli data-section-id=\"1ni38g\" data-start=\"1385\" data-end=\"1433\"\u003eT3\/T4 twin scroll turbo flange configuration\u003c\/li\u003e\n\u003cli data-section-id=\"u2wuek\" data-start=\"1434\" data-end=\"1481\"\u003eDual 44mm V-band external wastegate flanges\u003c\/li\u003e\n\u003cli data-section-id=\"okpzuz\" data-start=\"1482\" data-end=\"1534\"\u003eHeavy-duty 304 stainless steel thick-wall tubing\u003c\/li\u003e\n\u003cli data-section-id=\"jr6726\" data-start=\"1535\" data-end=\"1588\"\u003ePrecision TIG welded and back-purged construction\u003c\/li\u003e\n\u003cli data-section-id=\"1kifm9v\" data-start=\"1589\" data-end=\"1650\"\u003eTrue merge collector for improved exhaust flow efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"q4voct\" data-start=\"1651\" data-end=\"1686\"\u003eTop-mount turbo manifold layout\u003c\/li\u003e\n\u003cli data-section-id=\"fcbp0b\" data-start=\"1687\" data-end=\"1747\"\u003eDesigned for high-boost and high-horsepower applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1749\" data-end=\"1774\"\u003e\u003cstrong data-start=\"1749\" data-end=\"1774\"\u003ePerformance Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1775\" data-end=\"2028\"\u003e\n\u003cli data-section-id=\"nu2a13\" data-start=\"1775\" data-end=\"1821\"\u003eImproved turbo spool and throttle response\u003c\/li\u003e\n\u003cli data-section-id=\"1nzj39n\" data-start=\"1822\" data-end=\"1859\"\u003eIncreased exhaust flow efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"hai3ow\" data-start=\"1860\" data-end=\"1919\"\u003eBetter exhaust pulse separation with twin scroll design\u003c\/li\u003e\n\u003cli data-section-id=\"ec13lb\" data-start=\"1920\" data-end=\"1983\"\u003eEnhanced durability under extreme heat and boost conditions\u003c\/li\u003e\n\u003cli data-section-id=\"1eq38l7\" data-start=\"1984\" data-end=\"2028\"\u003eSupports large-frame turbocharger setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2030\" data-end=\"2050\"\u003e\u003cstrong data-start=\"2030\" data-end=\"2050\"\u003eVehicle Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2051\" data-end=\"2268\"\u003e\n\u003cli data-section-id=\"11fkas1\" data-start=\"2051\" data-end=\"2092\"\u003eNissan Silvia S13 SR20DET (1989–1994)\u003c\/li\u003e\n\u003cli data-section-id=\"1fjqqpj\" data-start=\"2093\" data-end=\"2134\"\u003eNissan Silvia S14 SR20DET (1995–1998)\u003c\/li\u003e\n\u003cli data-section-id=\"1i14thv\" data-start=\"2135\" data-end=\"2176\"\u003eNissan Silvia S15 SR20DET (1999–2002)\u003c\/li\u003e\n\u003cli data-section-id=\"nudb5i\" data-start=\"2177\" data-end=\"2213\"\u003eNissan 180SX SR20DET (1989–1998)\u003c\/li\u003e\n\u003cli data-section-id=\"8z84p1\" data-start=\"2214\" data-end=\"2268\"\u003eNissan 240SX SR20DET Swap Applications (1989–1998)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2270\" data-end=\"2482\"\u003e\u003cstrong data-start=\"2270\" data-end=\"2292\"\u003eInstallation Note:\u003c\/strong\u003e\u003cbr data-start=\"2292\" data-end=\"2295\"\u003eProfessional installation is strongly recommended. Custom fabrication, turbo setup configuration, and supporting modifications may be required depending on turbocharger and vehicle setup.\u003c\/p\u003e\n\u003cp data-start=\"2484\" data-end=\"2618\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2484\" data-end=\"2504\"\u003eWarranty Notice:\u003c\/strong\u003e\u003cbr data-start=\"2504\" data-end=\"2507\"\u003eAll warranties, claims, and product-related issues must be handled directly through \u003cstrong data-start=\"2591\" data-end=\"2617\"\u003eBULL BOOST PERFORMANCE\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Racing Precision Motorsports","offers":[{"title":"Default Title","offer_id":45426812387388,"sku":"46503812104412","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5934\/4956\/files\/SR20DET_843x843_a7c3abfb-f07b-4c2d-aa73-50e6d04db2ae.webp?v=1779161120","url":"https:\/\/rpm-racing.com\/products\/bull-boost-performance-sr20det-t3-t4-twin-scroll-44mm-top-mount-turbo-manifold-kit-for-s13-s14-s15-180sx-240sx","provider":"Racing Precision Motorsports","version":"1.0","type":"link"}