{"product_id":"spdz1-k-series-header-downpipe-12-15-civic-si-13-15-acura-ilx-stainless-bellmouth-preorder","title":"SPDZ1 K Series Header Downpipe 12-15 Civic Si \u0026 13-15 Acura ILX Stainless Bellmouth","description":"\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong data-start=\"206\" data-end=\"303\"\u003eSPDZ1 K Series Header Downpipe – 2012–2015 Honda Civic Si \/ 2013–2015 Acura ILX K24 (9th Gen)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"307\" data-end=\"670\"\u003eUnleash the full potential of your K24 with the \u003cstrong data-start=\"355\" data-end=\"389\"\u003eSPDZ1 K Series Header Downpipe\u003c\/strong\u003e, engineered for maximum flow, durability, and performance. Designed for \u003cstrong data-start=\"462\" data-end=\"503\"\u003e9th Gen Civic Si and Acura ILX models\u003c\/strong\u003e, this header downpipe eliminates factory restrictions to deliver \u003cstrong data-start=\"569\" data-end=\"608\"\u003eserious horsepower and torque gains\u003c\/strong\u003e, faster turbo response, and a more aggressive exhaust note.\u003c\/p\u003e\n\u003cp data-start=\"672\" data-end=\"1019\"\u003eCrafted from \u003cstrong data-start=\"685\" data-end=\"708\"\u003e304 stainless steel\u003c\/strong\u003e with \u003cstrong data-start=\"714\" data-end=\"737\"\u003emandrel-bent tubing\u003c\/strong\u003e and \u003cstrong data-start=\"742\" data-end=\"766\"\u003eCNC-machined flanges\u003c\/strong\u003e, the SPDZ1 downpipe guarantees strength, precision, and long-lasting reliability. The \u003cstrong data-start=\"853\" data-end=\"901\"\u003eOEM-style 4” cast bellmouth with a 3” outlet\u003c\/strong\u003e ensures optimal exhaust velocity, while the \u003cstrong data-start=\"946\" data-end=\"970\"\u003eintegrated flex pipe\u003c\/strong\u003e reduces stress under high-performance driving.\u003c\/p\u003e\n\u003cp data-start=\"1021\" data-end=\"1336\"\u003eInstallation is a breeze with its \u003cstrong data-start=\"1055\" data-end=\"1080\"\u003edirect bolt-on design\u003c\/strong\u003e, fitting seamlessly to the factory cat-back exhaust or aftermarket systems—no modifications required. Equipped with \u003cstrong data-start=\"1197\" data-end=\"1229\"\u003eO2 and wideband sensor ports\u003c\/strong\u003e, plus a \u003cstrong data-start=\"1238\" data-end=\"1255\"\u003e90° O2 spacer\u003c\/strong\u003e and included gaskets\/hardware, this kit is ready for hassle-free installation.\u003c\/p\u003e\n\u003ch3 data-start=\"1338\" data-end=\"1357\"\u003eKey Features:\u003c\/h3\u003e\n\u003cp data-start=\"1358\" data-end=\"1374\"\u003e✅ \u003cstrong data-start=\"1360\" data-end=\"1372\"\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1375\" data-end=\"1468\"\u003e\n\u003cli data-start=\"1375\" data-end=\"1430\"\u003e\n\u003cp data-start=\"1377\" data-end=\"1430\"\u003e2012–2015 Honda Civic Si (2-door \u0026amp; 4-door, 9th Gen)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1431\" data-end=\"1468\"\u003e\n\u003cp data-start=\"1433\" data-end=\"1468\"\u003e2013–2015 Acura ILX K24 (9th Gen)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1470\" data-end=\"2052\"\u003e✅ \u003cstrong data-start=\"1472\" data-end=\"1488\"\u003ePerformance:\u003c\/strong\u003e Increased horsepower, torque, and improved throttle response\u003cbr data-start=\"1549\" data-end=\"1552\"\u003e✅ \u003cstrong data-start=\"1554\" data-end=\"1571\"\u003eConstruction:\u003c\/strong\u003e 304 stainless steel, TIG welded, mandrel-bent tubing\u003cbr data-start=\"1624\" data-end=\"1627\"\u003e✅ \u003cstrong data-start=\"1629\" data-end=\"1640\"\u003eDesign:\u003c\/strong\u003e 4” cast bellmouth with 3” outlet for maximum exhaust flow\u003cbr data-start=\"1698\" data-end=\"1701\"\u003e✅ \u003cstrong data-start=\"1703\" data-end=\"1721\"\u003eCompatibility:\u003c\/strong\u003e Direct bolt-on to OEM or aftermarket cat-back exhaust\u003cbr data-start=\"1775\" data-end=\"1778\"\u003e✅ \u003cstrong data-start=\"1780\" data-end=\"1794\"\u003ePrecision:\u003c\/strong\u003e CNC-machined manifold flanges for a perfect seal\u003cbr data-start=\"1843\" data-end=\"1846\"\u003e✅ \u003cstrong data-start=\"1848\" data-end=\"1862\"\u003eFlex Pipe:\u003c\/strong\u003e Reduces stress and vibration for longer system life\u003cbr data-start=\"1914\" data-end=\"1917\"\u003e✅ \u003cstrong data-start=\"1919\" data-end=\"1936\"\u003eComplete Kit:\u003c\/strong\u003e Includes gasket, hardware, O2 plugs, and 90° O2 spacer\u003cbr data-start=\"1991\" data-end=\"1994\"\u003e✅ \u003cstrong data-start=\"1996\" data-end=\"2009\"\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year manufacturer warranty\u003c\/p\u003e\n\u003cp data-start=\"2054\" data-end=\"2254\"\u003eBuilt to the \u003cstrong data-start=\"2067\" data-end=\"2092\"\u003eSPDZ1 Racing Standard\u003c\/strong\u003e, this header downpipe is the ultimate upgrade for Civic Si and ILX owners looking for \u003cstrong data-start=\"2179\" data-end=\"2251\"\u003eaffordable performance, superior fitment, and race-ready reliability\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2054\" data-end=\"2254\" style=\"text-align: center;\"\u003eI\u003cstrong\u003eN STOCK AND READY TO SHIP!!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Speedzone Performance LLC","offers":[{"title":"Default Title","offer_id":42175634899006,"sku":"SZY-019-BASE","price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/1123\/3598\/files\/CFC69A6F-4DAA-4A1B-9877-0DB967CB204C.png?v=1761244205","url":"https:\/\/turbotechperformance.com\/products\/spdz1-k-series-header-downpipe-12-15-civic-si-13-15-acura-ilx-stainless-bellmouth-preorder","provider":"TURBO TECH PERFORMANCE","version":"1.0","type":"link"}