{"product_id":"echappement-porsche-cayman-gt4-3-8-981","title":"ROG® valved exhaust system — Porsche Cayman GT4 3.8 type 981 (2015–2016)","description":"\u003cp\u003e\u003cstrong\u003eROG® valved exhaust system — Porsche Cayman GT4 3.8 type 981 (2015–2016)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe 385 hp 3.8-litre is a naturally aspirated flat-six, and the stock system filters it as much as it weighs: 16.7 kg. The ROG system replaces it with a valved system you control, without touching the engine or the ECU. Valves closed, you keep the comfortable stock sound. Open, you hear the flat-six.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/p\u003e\u003cp style=\"font-size:13px;color:#555;font-style:italic;margin:12px 0;\"\u003eAt ROG we go after the best, which is why we always recommend a remap at an approved centre after fitting. Our systems fit perfectly with or without, but it is with a full remap that your engine will express all of its potential.\u003c\/p\u003e\u003cp class=\"rog-perf-version\"\u003e\u003cstrong\u003e385 hp\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;margin:12px 0 4px;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-family:-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,sans-serif;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:10px 8px;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;text-align:center;white-space:nowrap;border:none;border-bottom:2px solid #ddd;background:#fff;color:#fff;width:26%;\"\u003e\u003c\/th\u003e\n\u003cth style=\"padding:10px 8px;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;text-align:center;white-space:nowrap;border:none;border-bottom:2px solid #ddd;background:#f0f0f0;color:#888;width:25%;\"\u003eStock\u003c\/th\u003e\n\n\u003cth style=\"padding:10px 8px;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;text-align:center;white-space:nowrap;border:none;border-bottom:2px solid #ddd;background:#CC0000;color:#fff;width:25%;\"\u003eStage 2 + Reprog\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 8px;font-size:13px;font-weight:600;color:#111;text-align:left;padding-left:12px;border-bottom:1px solid #ebebeb;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;font-size:13px;text-align:center;border-bottom:1px solid #ebebeb;color:#999;\"\u003e385 hp\u003c\/td\u003e\n\n\u003ctd style=\"padding:12px 8px;font-size:13px;text-align:center;border-bottom:1px solid #ebebeb;color:#CC0000;font-weight:700;font-size:14px;\"\u003e425 hp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fafafa;\"\u003e\n\u003ctd style=\"padding:12px 8px;font-size:13px;font-weight:600;color:#111;text-align:left;padding-left:12px;\"\u003eTorque\u003c\/td\u003e\n\u003ctd style=\"padding:12px 8px;font-size:13px;text-align:center;color:#999;\"\u003e420 Nm\u003c\/td\u003e\n\n\u003ctd style=\"padding:12px 8px;font-size:13px;text-align:center;color:#CC0000;font-weight:700;font-size:14px;\"\u003e462 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cdiv class=\"rog-perf-mobile\"\u003e\n\n\u003cdiv class=\"rog-perf-card\"\u003e\n\u003cdiv class=\"rog-perf-card-header red\"\u003eStage 2 + Reprog\u003c\/div\u003e\n\u003cdiv class=\"rog-perf-row\"\u003e\n\u003cspan class=\"rog-perf-label\"\u003ePower\u003c\/span\u003e\u003cspan class=\"rog-perf-val\"\u003e\u003cspan class=\"orig\"\u003eStock: 385 hp\u003c\/span\u003e425 hp\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rog-perf-row\"\u003e\n\u003cspan class=\"rog-perf-label\"\u003eTorque\u003c\/span\u003e\u003cspan class=\"rog-perf-val\"\u003e\u003cspan class=\"orig\"\u003eStock: 420 Nm\u003c\/span\u003e462 Nm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cp style=\"font-size:12px;color:#aaa;font-style:italic;margin-top:6px;\"\u003eStage 2 with a full remap.\u003c\/p\u003e\u003cp style=\"margin-top:22px;\"\u003e\u003cstrong\u003eThe Manifold option: what it replaces\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBetween the engine and our system, one stock part remains, the one that holds the catalytic converter. On a highly tuned naturally aspirated engine its design matters: lengths and geometry affect cylinder filling at high revs. Expect a real but modest gain, in the order of 3 to 8 %, and only with a remap. Badly designed, it costs you torque down low. The 200-cell sport catalytic converter retains exhaust after-treatment; the 100-cell version and the catalyst-free variant do not. No component type approval exists for these parts: check the regulations in your country before fitting.\u003c\/p\u003e\u003cdiv data-rog-guide=\"v2\" style=\"margin-top:28px;padding-top:20px;border-top:1px solid rgba(0,0,0,.11);\"\u003e\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:10px;\"\u003e\n\u003ca class=\"rogx-guide__btn rogx-guide__btn--fort\" href=\"\/en\/blogs\/guides\/guide-porsche-cayman-gt4-3-8-981\" style=\"display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:980px;text-decoration:none;font-size:15px;font-weight:500;font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Helvetica Neue',Helvetica,Arial,sans-serif;line-height:1.2;white-space:nowrap;background:#1D1D1F;color:#fff\"\u003e\u003cspan\u003eRead the full guide\u003c\/span\u003e\u003csvg viewbox=\"0 0 24 24\" width=\"15\" height=\"15\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\" style=\"flex:none\"\u003e\u003cpath d=\"M5 12h13M12 5l7 7-7 7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/a\u003e\u003ca class=\"rogx-guide__btn\" href=\"\/en\/collections\/echappement-porsche\" style=\"display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:980px;text-decoration:none;font-size:15px;font-weight:500;font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Helvetica Neue',Helvetica,Arial,sans-serif;line-height:1.2;white-space:nowrap;background:#F5F5F7;color:#1D1D1F\"\u003e\u003cspan\u003eAll Porsche systems\u003c\/span\u003e\u003c\/a\u003e\u003ca class=\"rogx-guide__btn\" href=\"\/en\/pages\/echappements-par-marque\" style=\"display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:980px;text-decoration:none;font-size:15px;font-weight:500;font-family:-apple-system,BlinkMacSystemFont,'SF Pro Text','Helvetica Neue',Helvetica,Arial,sans-serif;line-height:1.2;white-space:nowrap;background:#F5F5F7;color:#1D1D1F\"\u003e\u003cspan\u003eAll 22 brands\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c!-- rog-maillage --\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eOther versions and closely related engines\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/echappement-porsche-boxster-cayman-2-7-981\"\u003eBoxster \/ Cayman 2.7 type 981\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/echappement-porsche-718-boxster-cayman-2-0-turbo-982\"\u003e718 Boxster \/ Cayman 2.0 turbo type 982\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/echappement-porsche-718-boxster-gts-2-5-turbo-982\"\u003e718 Boxster GTS 2.5 turbo type 982\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en\/products\/echappement-porsche-718-cayman-gt4-4-0-982\"\u003e718 Cayman GT4 4.0 type 982\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSee all the \u003ca href=\"\/en\/collections\/echappement-porsche\"\u003ePorsche valved exhaust systems\u003c\/a\u003e.\u003c\/p\u003e\u003c!-- \/rog-maillage --\u003e","brand":"ROG Motorsport","offers":[{"title":"Stainless steel \/ No manifold","offer_id":60851727401294,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-INOX-SANS","price":3990.0,"currency_code":"EUR","in_stock":true},{"title":"Stainless steel \/ Catalyst-free manifold","offer_id":60851727434062,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-INOX-DECAT","price":4910.0,"currency_code":"EUR","in_stock":true},{"title":"Stainless steel \/ 100-cell sport manifold","offer_id":60851727466830,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-INOX-SP100","price":5410.0,"currency_code":"EUR","in_stock":true},{"title":"Stainless steel \/ 200-cell sport manifold","offer_id":60851727499598,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-INOX-SP200","price":5410.0,"currency_code":"EUR","in_stock":true},{"title":"Titanium \/ No manifold","offer_id":60851727532366,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-TI-SANS","price":4990.0,"currency_code":"EUR","in_stock":true},{"title":"Titanium \/ Catalyst-free manifold","offer_id":60851727565134,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-TI-DECAT","price":5910.0,"currency_code":"EUR","in_stock":true},{"title":"Titanium \/ 100-cell sport manifold","offer_id":60851727597902,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-TI-SP100","price":6410.0,"currency_code":"EUR","in_stock":true},{"title":"Titanium \/ 200-cell sport manifold","offer_id":60851727630670,"sku":"ROG-590-PORSCHE-CAYMAN-GT4-3-8-TYPE-981-TI-SP200","price":6410.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/5079\/3806\/files\/porsche-cayman-gt4-3-8-981-ligne-echappement.png?v=1789656535","url":"https:\/\/rogmotorsport.com\/en\/products\/exhaust-porsche-cayman-gt4-3-8-981","provider":"ROG","version":"1.0","type":"link"}