{"product_id":"fabspeed-race-headers-porsche-981-boxster-spyder-gt4-2016","title":"Fabspeed Race Headers Porsche 981 Boxster Spyder \/ GT4 (2016)","description":"\u003cp\u003eThese Fabspeed Race Headers are a high-flow, cat-deleted long-tube solution for the Porsche 981 Cayman GT4 (and Boxster Spyder), designed to relieve exhaust restriction and deliver a significant bump in performance. Built from equal-length T304 stainless-steel tubing, the design maximizes exhaust scavenging and delivers a raw, aggressive tone under throttle. With these headers installed, you get up to \u003cstrong data-end=\"626\" data-start=\"615\"\u003e+27 whp\u003c\/strong\u003e and \u003cstrong data-end=\"655\" data-start=\"631\"\u003e+38 ft-lbs of torque\u003c\/strong\u003e down low, along with weight savings that sharpen driving dynamics.\u003c\/p\u003e\n\u003cp data-end=\"748\" data-start=\"729\"\u003e\u003cstrong data-end=\"746\" data-start=\"729\"\u003eFitment Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1505\" data-start=\"749\"\u003e\n\u003cli data-end=\"884\" data-start=\"749\"\u003e\n\u003cp data-end=\"884\" data-start=\"751\"\u003eFits Porsche \u003cstrong data-end=\"782\" data-start=\"764\"\u003e981 Cayman GT4\u003c\/strong\u003e and \u003cstrong data-end=\"809\" data-start=\"787\"\u003e981 Boxster Spyder\u003c\/strong\u003e (2015–2016)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1051\" data-start=\"885\"\u003e\n\u003cp data-end=\"1051\" data-start=\"887\"\u003eThese are \u003cstrong data-end=\"912\" data-start=\"897\"\u003ecat-deleted\u003c\/strong\u003e (“race”) headers and do \u003cstrong data-end=\"944\" data-start=\"937\"\u003enot\u003c\/strong\u003e include catalytic converters — intended for track or off-road use.\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1314\" data-start=\"1052\"\u003e\n\u003cp data-end=\"1314\" data-start=\"1054\"\u003eMay trigger a check-engine light (“CEL”) on some vehicles when used without further modifications. Fabspeed notes that, on their test car, CEL did \u003cem data-end=\"1206\" data-start=\"1201\"\u003enot\u003c\/em\u003e occur over 200 miles with these headers, but your results may vary.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1505\" data-start=\"1315\"\u003e\n\u003cp data-end=\"1505\" data-start=\"1317\"\u003eRequires proper torque sequencing after heat-cycling: Fabspeed recommends re-tightening all header hardware to OEM torque after initial heat cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1526\" data-start=\"1512\"\u003e\u003cstrong data-end=\"1524\" data-start=\"1512\"\u003eIncluded\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1938\" data-start=\"1527\"\u003e\n\u003cli data-end=\"1660\" data-start=\"1527\"\u003e\n\u003cp data-end=\"1660\" data-start=\"1529\"\u003eLeft and right long-tube stainless steel header assemblies, CNC-mandrel bent, equal-length.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1763\" data-start=\"1661\"\u003e\n\u003cp data-end=\"1763\" data-start=\"1663\"\u003eMulti-layer exhaust manifold gasket(s) for reliable sealing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1763\" data-start=\"1661\"\u003e\n\u003cp data-end=\"1763\" data-start=\"1663\"\u003e\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/jmautosports.com\/products\/fabspeed-porsche-981-cayman-gt4-race-headers-fspor981gt4ltrhdr?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/jmautosports.com\/products\/fabspeed-porsche-981-cayman-gt4-race-headers-fspor981gt4ltrhdr?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003eInstallation instructions from Fabspeed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1938\" data-start=\"1847\"\u003e\n\u003cp data-end=\"1938\" data-start=\"1849\"\u003eFabspeed Lifetime Limited Warranty documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1964\" data-start=\"1945\"\u003e\u003cstrong data-end=\"1962\" data-start=\"1945\"\u003eProduct Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2652\" data-start=\"1965\"\u003e\n\u003cli data-end=\"2085\" data-start=\"1965\"\u003e\n\u003cp data-end=\"2085\" data-start=\"1967\"\u003eMaterial: T304 stainless steel, CNC mandrel-bent for smooth flow and strength. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2183\" data-start=\"2086\"\u003e\n\u003cp data-end=\"2183\" data-start=\"2088\"\u003ePower Gains: +27 whp, +38 ft-lbs torque at ~3,700 rpm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2283\" data-start=\"2184\"\u003e\n\u003cp data-end=\"2283\" data-start=\"2186\"\u003eTop-end Gains: +18 whp, +15 ft-lbs torque at ~6,300 rpm\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2389\" data-start=\"2284\"\u003e\n\u003cp data-end=\"2389\" data-start=\"2286\"\u003eWeight Savings: ≈ \u003cstrong data-end=\"2315\" data-start=\"2304\"\u003e-10 lbs\u003c\/strong\u003e compared to OEM header section. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2389\" data-start=\"2284\"\u003e\n\u003cp data-end=\"2389\" data-start=\"2286\"\u003e\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/www.fabspeed.com\/porsche-cayman-gt4-race-headers\/?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/www.fabspeed.com\/porsche-cayman-gt4-race-headers\/?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003eConstruction: Equal-length header tubes to optimize scavenging and pulse tuning. \u003cspan aria-describedby=\"radix-_r_vl_\" data-state=\"instant-open\" class=\"\"\u003e\u003cspan aria-describedby=\"radix-_r_vl_\" data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out bg-token-text-primary! text-token-main-surface-primary!\" alt=\"https:\/\/jmautosports.com\/products\/fabspeed-porsche-981-cayman-gt4-race-headers-fspor981gt4ltrhdr?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/jmautosports.com\/products\/fabspeed-porsche-981-cayman-gt4-race-headers-fspor981gt4ltrhdr?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2659\" data-end=\"2681\"\u003e\u003cstrong data-start=\"2659\" data-end=\"2679\"\u003eProduct Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2682\" data-end=\"3418\"\u003e\n\u003cli data-start=\"2682\" data-end=\"2817\"\u003e\n\u003cp data-start=\"2684\" data-end=\"2817\"\u003e\u003cstrong data-start=\"2684\" data-end=\"2714\"\u003eTrack-Focused Maximum Flow\u003c\/strong\u003e — removing the cats frees up major exhaust flow, allowing your flat-six to breathe more efficiently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2818\" data-end=\"2937\"\u003e\n\u003cp data-start=\"2820\" data-end=\"2937\"\u003e\u003cstrong data-start=\"2820\" data-end=\"2852\"\u003eHigh-Quality Stainless Steel\u003c\/strong\u003e — built from T304 for durability, resistance to corrosion and good heat tolerance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2938\" data-end=\"3067\"\u003e\n\u003cp data-start=\"2940\" data-end=\"3067\"\u003e\u003cstrong data-start=\"2940\" data-end=\"2963\"\u003eEqual-Length Design\u003c\/strong\u003e — ensures exhaust scavenging is balanced across cylinders for optimized torque and throttle response.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3068\" data-end=\"3169\"\u003e\n\u003cp data-start=\"3070\" data-end=\"3169\"\u003e\u003cstrong data-start=\"3070\" data-end=\"3090\"\u003eWeight Reduction\u003c\/strong\u003e — sheds roughly 10 lbs, improving responsiveness and reducing rear-end mass.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3170\" data-end=\"3290\"\u003e\n\u003cp data-start=\"3172\" data-end=\"3290\"\u003e\u003cstrong data-start=\"3172\" data-end=\"3200\"\u003eAggressive Sound Profile\u003c\/strong\u003e — the large bore and lack of cats give the GT4 a more muscular, race-like exhaust note.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3291\" data-end=\"3418\"\u003e\n\u003cp data-start=\"3293\" data-end=\"3418\"\u003e\u003cstrong data-start=\"3293\" data-end=\"3312\"\u003eWarranty-Backed\u003c\/strong\u003e — covered by Fabspeed’s lifetime limited warranty, offering confidence in long-term use for track builds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Fabspeed Motorsport","offers":[{"title":"Default Title","offer_id":51297033584960,"sku":"FS.POR.981GT4.LTRHDR","price":3178.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/7587\/4624\/files\/fabspeed-motorsport-fabspeed-porsche-981-cayman-gt4-race-headers__20172.jpg?v=1763825556","url":"https:\/\/www.forzamotorworks.com\/products\/fabspeed-race-headers-porsche-981-boxster-spyder-gt4-2016","provider":"Forza Motor Works","version":"1.0","type":"link"}