{"product_id":"yonristic-porsche-981-cayman-boxster-performance-cat-back-exhaust-system","title":"Yonristic Porsche 981 Cayman \/ Boxster Performance Cat-Back Exhaust System","description":"\u003ch1 data-start=\"224\" data-end=\"296\"\u003e\u003cstrong data-start=\"226\" data-end=\"294\"\u003ePorsche 981 Cayman \/ Boxster Performance Cat-Back Exhaust System\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp data-start=\"297\" data-end=\"348\"\u003e\u003cstrong data-start=\"297\" data-end=\"348\"\u003e(Cayman \/ Boxster \/ Cayman S \/ Boxster S \/ GTS)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"350\" data-end=\"825\"\u003eUnlock the true character of the Porsche 981 with a completely redesigned exhaust system engineered to maximize flow, sharpen throttle response, and unleash the flat-six soundtrack the factory system hides. The OEM exhaust on the 981 is heavily baffled to meet comfort and noise regulations—resulting in a muted, restricted tone that fails to showcase the engine’s natural resonance. Our system transforms the car into the raw, motorsport-inspired machine it was meant to be.\u003c\/p\u003e\n\u003cp data-start=\"827\" data-end=\"1334\"\u003eAt the heart of this design is a \u003cstrong data-start=\"860\" data-end=\"886\"\u003edual-loop architecture\u003c\/strong\u003e constructed from \u003cstrong data-start=\"904\" data-end=\"943\"\u003e2.5-inch (63mm) mandrel-bent tubing\u003c\/strong\u003e, engineered to amplify exhaust pulse length while smoothing out the frequency balance. The loops deepen the midrange growl while sharpening the top-end scream, creating a uniquely exotic tone that no conventional system can reproduce. Exhaust flow then merges through our hand-built \u003cstrong data-start=\"1227\" data-end=\"1242\"\u003eX-pipe exit\u003c\/strong\u003e, which equalizes bank pressures and blends pulses into a clean, razor-sharp flat-six wail.\u003c\/p\u003e\n\u003cp data-start=\"1336\" data-end=\"1785\"\u003eThis is a pure, \u003cstrong data-start=\"1352\" data-end=\"1389\"\u003evalveless straight-through system\u003c\/strong\u003e—built for drivers seeking the full acoustic and performance potential of the 981 platform. Without internal restrictions or valve bottlenecks, the engine breathes freely, improving responsiveness and supporting additional tuning, high-flow headers, or upgraded intakes. During installation, simply sealing the factory vacuum valve lines ensures a proper ECU response and prevents any CEL issues.\u003c\/p\u003e\n\u003cp data-start=\"1787\" data-end=\"2157\"\u003eEvery system is hand-welded, hand-built, and available in either \u003cstrong data-start=\"1852\" data-end=\"1880\"\u003eAISI 304 stainless steel\u003c\/strong\u003e or \u003cstrong data-start=\"1884\" data-end=\"1919\"\u003e6AL-4V aerospace-grade titanium\u003c\/strong\u003e for maximum weight savings and a more vivid, higher-frequency tone. The setup finishes with aggressive \u003cstrong data-start=\"2023\" data-end=\"2048\"\u003e3.5-inch exhaust tips\u003c\/strong\u003e, available in polished chrome, satin black, burnt, or forged carbon fiber to match your vehicle’s aesthetic.\u003c\/p\u003e\n\u003cp data-start=\"2159\" data-end=\"2367\"\u003eCompletely \u003cstrong data-start=\"2170\" data-end=\"2217\"\u003ebolt-on with no cutting or welding required\u003c\/strong\u003e, this exhaust offers the perfect balance of craftsmanship, sound, and performance for any 981 enthusiast looking to elevate their driving experience.\u003c\/p\u003e\n\u003chr data-start=\"2369\" data-end=\"2372\"\u003e\n\u003ch2 data-start=\"2374\" data-end=\"2399\"\u003e\u003cstrong data-start=\"2377\" data-end=\"2399\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2401\" data-end=\"2485\"\u003e\u003cstrong data-start=\"2401\" data-end=\"2413\"\u003eFitment:\u003c\/strong\u003e\u003cbr data-start=\"2413\" data-end=\"2416\"\u003ePorsche 981 Cayman \/ Boxster \/ Cayman S \/ Boxster S \/ GTS (2013–2016)\u003c\/p\u003e\n\u003cp data-start=\"2487\" data-end=\"2638\"\u003e\u003cstrong data-start=\"2487\" data-end=\"2505\"\u003eConfiguration:\u003c\/strong\u003e\u003cbr data-start=\"2505\" data-end=\"2508\"\u003eDual-loop cat-back system\u003cbr data-start=\"2533\" data-end=\"2536\"\u003e2.5\" (63mm) mandrel-bent tubing\u003cbr data-start=\"2567\" data-end=\"2570\"\u003eMerged X-pipe exit\u003cbr data-start=\"2588\" data-end=\"2591\"\u003eNo valves — straight-through performance design\u003c\/p\u003e\n\u003cp data-start=\"2640\" data-end=\"2725\"\u003e\u003cstrong data-start=\"2640\" data-end=\"2654\"\u003eMaterials:\u003c\/strong\u003e\u003cbr data-start=\"2654\" data-end=\"2657\"\u003eAISI 304 Stainless Steel\u003cbr data-start=\"2681\" data-end=\"2684\"\u003e6AL-4V Titanium (55–60% lighter than OEM)\u003c\/p\u003e\n\u003cp data-start=\"2727\" data-end=\"2848\"\u003e\u003cstrong data-start=\"2727\" data-end=\"2745\"\u003eManufacturing:\u003c\/strong\u003e\u003cbr data-start=\"2745\" data-end=\"2748\"\u003eFull 3D-scanned fitment\u003cbr data-start=\"2771\" data-end=\"2774\"\u003eTIG-welded by hand\u003cbr data-start=\"2792\" data-end=\"2795\"\u003ePrecision-formed loops and X-pipe\u003cbr data-start=\"2828\" data-end=\"2831\"\u003eShow-grade finish\u003c\/p\u003e\n\u003cp data-start=\"2850\" data-end=\"2935\"\u003e\u003cstrong data-start=\"2850\" data-end=\"2882\"\u003eTip Options (3.5” diameter):\u003c\/strong\u003e\u003cbr data-start=\"2882\" data-end=\"2885\"\u003eChrome \/ Burnt \/ Satin Black \/ Forged Carbon Fiber\u003c\/p\u003e\n\u003cp data-start=\"2937\" data-end=\"3175\"\u003e\u003cstrong data-start=\"2937\" data-end=\"2959\"\u003ePerformance Gains:\u003c\/strong\u003e\u003cbr data-start=\"2959\" data-end=\"2962\"\u003e+8–12 hp \u0026amp; +10–14 lb-ft (cat-back only)\u003cbr data-start=\"3001\" data-end=\"3004\"\u003e+18–25 hp with high-flow headers (estimated based on 981 tuning data)\u003cbr data-start=\"3073\" data-end=\"3076\"\u003eImproved throttle response \u0026amp; faster revving\u003cbr data-start=\"3119\" data-end=\"3122\"\u003eMore efficient exhaust scavenging due to X-pipe merge\u003c\/p\u003e\n\u003cp data-start=\"3177\" data-end=\"3279\"\u003e\u003cstrong data-start=\"3177\" data-end=\"3196\"\u003eWeight Savings:\u003c\/strong\u003e\u003cbr data-start=\"3196\" data-end=\"3199\"\u003e304 Stainless: ~5–8 lbs lighter than OEM\u003cbr data-start=\"3239\" data-end=\"3242\"\u003eTitanium: ~15–20 lbs lighter than OEM\u003c\/p\u003e\n\u003cp data-start=\"3281\" data-end=\"3444\"\u003e\u003cstrong data-start=\"3281\" data-end=\"3298\"\u003eInstallation:\u003c\/strong\u003e\u003cbr data-start=\"3298\" data-end=\"3301\"\u003e100% bolt-on; no cutting or welding needed\u003cbr data-start=\"3343\" data-end=\"3346\"\u003eRecommendation: cap\/seal OEM vacuum valve lines to avoid CEL\u003cbr data-start=\"3406\" data-end=\"3409\"\u003eDirect fit with OEM mounting points\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"AISI304 Stainless Steel \/ (2) Chrome","offer_id":46034887278826,"sku":"YR-6783-YON-AIS","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ (2) Burnt","offer_id":46034887311594,"sku":"YR-8215-YON-AIS","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ (2) Black","offer_id":46034887344362,"sku":"YR-6414-YON-AIS","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ (2) Carbon Fiber","offer_id":46034887377130,"sku":"YR-9504-YON-AIS","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ (2) Chrome","offer_id":46034887409898,"sku":"YR-9744-YON-4AL","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ (2) Burnt","offer_id":46034887442666,"sku":"YR-5939-YON-4AL","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ (2) Black","offer_id":46034887475434,"sku":"YR-2968-YON-4AL","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ (2) Carbon Fiber","offer_id":46034887508202,"sku":"YR-5371-YON-4AL","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/981PorscheGTS.jpg?v=1778282229","url":"https:\/\/www.k2-industries.com\/en-ca\/products\/yonristic-porsche-981-cayman-boxster-performance-cat-back-exhaust-system","provider":"K2 Industries","version":"1.0","type":"link"}