{"title":"991 GT3\/RS","description":"","products":[{"product_id":"porsche-991-gt3-rs-titanium-valved-catback-exhaust-system","title":"Porsche 991 GT3 \/ RS Titanium Valved Catback Exhaust System","description":"\u003cp data-start=\"0\" data-end=\"52\"\u003e\u003cstrong data-start=\"0\" data-end=\"52\"\u003ePorsche 991 GT3 \/ GT3 RS Titanium Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"54\" data-end=\"346\"\u003eEngineered for one of Porsche’s most iconic high-revving platforms, this titanium exhaust system unlocks the full intensity of the 991 GT3 and GT3 RS. Lighter, louder, and far more visceral—this is the upgrade that turns an already elite driving experience into something truly unforgettable.\u003c\/p\u003e\n\u003chr data-start=\"348\" data-end=\"351\"\u003e\n\u003ch3 data-start=\"353\" data-end=\"366\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"357\" data-end=\"366\"\u003ePrice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"367\" data-end=\"380\"\u003e\u003cstrong data-start=\"367\" data-end=\"380\"\u003e$4,899.99\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"382\" data-end=\"385\"\u003e\n\u003ch3 data-start=\"387\" data-end=\"402\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"391\" data-end=\"402\"\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"403\" data-end=\"706\"\u003e\n\u003cli data-start=\"403\" data-end=\"450\"\u003ePorsche 911 GT3 (991.1 \u0026amp; 991.2 | 2014–2019)\u003c\/li\u003e\n\u003cli data-start=\"451\" data-end=\"501\"\u003ePorsche 911 GT3 RS (991.1 \u0026amp; 991.2 | 2016–2019)\u003c\/li\u003e\n\u003cli data-start=\"502\" data-end=\"576\"\u003eDirect bolt-on system — no cutting or permanent modifications required\u003c\/li\u003e\n\u003cli data-start=\"577\" data-end=\"633\"\u003ePrecision-designed to align with OEM mounting points\u003c\/li\u003e\n\u003cli data-start=\"634\" data-end=\"706\"\u003eFully compatible with factory exhaust valve controls and drive modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"708\" data-end=\"711\"\u003e\n\u003ch3 data-start=\"713\" data-end=\"736\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"717\" data-end=\"736\"\u003eSound Character\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"737\" data-end=\"831\"\u003eThe 9,000 RPM flat-six is the heart of the GT3—this system lets it sing at its full potential.\u003c\/p\u003e\n\u003cul data-start=\"833\" data-end=\"1311\"\u003e\n\u003cli data-start=\"833\" data-end=\"962\"\u003e\n\u003cstrong data-start=\"835\" data-end=\"853\"\u003eValves Closed:\u003c\/strong\u003e Smooth, refined tone with a deeper, more controlled presence. Comfortable for cruising with minimal drone.\u003c\/li\u003e\n\u003cli data-start=\"963\" data-end=\"1133\"\u003e\n\u003cstrong data-start=\"965\" data-end=\"981\"\u003eValves Open:\u003c\/strong\u003e Explosive, motorsport-derived scream with extreme clarity and volume. Razor-sharp throttle response, crisp upshifts, and aggressive overrun crackles.\u003c\/li\u003e\n\u003cli data-start=\"1134\" data-end=\"1311\"\u003e\n\u003cstrong data-start=\"1136\" data-end=\"1156\"\u003eOverall Profile:\u003c\/strong\u003e Titanium amplifies higher frequencies, producing a sharper, more exotic note with a clean, race-inspired top-end and reduced muffling compared to stock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1313\" data-end=\"1316\"\u003e\n\u003ch3 data-start=\"1318\" data-end=\"1349\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1322\" data-end=\"1349\"\u003eMaterials \u0026amp; Engineering\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1350\" data-end=\"1770\"\u003e\n\u003cli data-start=\"1350\" data-end=\"1436\"\u003eConstructed from \u003cstrong data-start=\"1369\" data-end=\"1397\"\u003eaerospace-grade titanium\u003c\/strong\u003e for maximum strength-to-weight ratio\u003c\/li\u003e\n\u003cli data-start=\"1437\" data-end=\"1492\"\u003eSignificant weight reduction vs. OEM exhaust system\u003c\/li\u003e\n\u003cli data-start=\"1493\" data-end=\"1561\"\u003ePrecision TIG-welded for durability and a clean, high-end finish\u003c\/li\u003e\n\u003cli data-start=\"1562\" data-end=\"1634\"\u003eMandrel-bent tubing for optimal exhaust flow and minimal restriction\u003c\/li\u003e\n\u003cli data-start=\"1635\" data-end=\"1710\"\u003eExceptional heat resistance for high-performance and track environments\u003c\/li\u003e\n\u003cli data-start=\"1711\" data-end=\"1770\"\u003eIntegrated valved design retains full OEM functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1772\" data-end=\"1775\"\u003e\n\u003ch3 data-start=\"1777\" data-end=\"1805\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1781\" data-end=\"1805\"\u003ePerformance Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1806\" data-end=\"2058\"\u003e\n\u003cli data-start=\"1806\" data-end=\"1878\"\u003eIncreased exhaust flow for improved horsepower and throttle response\u003c\/li\u003e\n\u003cli data-start=\"1879\" data-end=\"1938\"\u003eReduced system weight for enhanced handling and agility\u003c\/li\u003e\n\u003cli data-start=\"1939\" data-end=\"1998\"\u003eFaster engine response and improved top-end performance\u003c\/li\u003e\n\u003cli data-start=\"1999\" data-end=\"2058\"\u003eHeightened driver engagement through sound and feedback\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2060\" data-end=\"2063\"\u003e\n\u003ch3 data-start=\"2065\" data-end=\"2090\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2069\" data-end=\"2090\"\u003eWhat’s in the Box\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2091\" data-end=\"2306\"\u003e\n\u003cli data-start=\"2091\" data-end=\"2150\"\u003eFull titanium exhaust system (mid-pipes + rear section)\u003c\/li\u003e\n\u003cli data-start=\"2151\" data-end=\"2189\"\u003eIntegrated valved muffler assembly\u003c\/li\u003e\n\u003cli data-start=\"2190\" data-end=\"2236\"\u003eAll required clamps, hardware, and gaskets\u003c\/li\u003e\n\u003cli data-start=\"2237\" data-end=\"2283\"\u003ePlug-and-play valve integration components\u003c\/li\u003e\n\u003cli data-start=\"2284\" data-end=\"2306\"\u003eInstallation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2308\" data-end=\"2311\"\u003e\n\u003ch3 data-start=\"2313\" data-end=\"2336\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2317\" data-end=\"2336\"\u003eWhy This System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2337\" data-end=\"2586\"\u003eThe 991 GT3 and GT3 RS are built around precision, revs, and emotion—but the factory exhaust leaves a layer of restraint. This titanium system removes that barrier, delivering a raw, high-frequency soundtrack that matches the engine’s race-bred DNA.\u003c\/p\u003e\n\u003cp data-start=\"2588\" data-end=\"2754\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eFor owners who want every drive to feel like a qualifying lap, with a sound that reflects the car’s true capability—this is the upgrade that completes the experience.\u003c\/p\u003e","brand":"Velocity Performance Parts","offers":[{"title":"Default Title","offer_id":48270396129529,"sku":"14:200026864#Picture","price":4899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/files\/Sff9c5fe076b2473192fab0c15d9e2cc3O.webp?v=1775804993"},{"product_id":"porsche-991-gt3-rs-high-flow-competition-headers-headers","title":"Porsche 991 GT3 \/ GT3RS High-flow Competition headers Headers","description":"Engineered for the 991 GT3 and GT3RS, these high-flow competition headers maximize exhaust scavenging and reduce backpressure for increased horsepower and torque. Precision-mandrel bent tubing and ceramic coating resist heat while improving durability. Direct bolt-on fitment requires no modifications. Unleash your Porsche's full potential with track-proven performance gains and a more aggressive exhaust note.","brand":"Velocity Performance Parts","offers":[{"title":"Default Title","offer_id":48270396227833,"sku":"14:29#White","price":2399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/files\/S696bc8d91bc44796bdcdc307125a4c5di.webp?v=1775806079"},{"product_id":"porsche-991-gt3-rs-stainless-steel-valved-full-exhaust-system","title":"Porsche 991 GT3 \/ GT3RS Stainless Steel Catted Valved Exhaust System","description":"\u003csection data-turn=\"user\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-19\" data-turn-id=\"0bbdac31-902f-4e94-bed9-b37e3c2fbcfc\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-(--header-height)\"\u003e\u003c\/section\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"true\" data-testid=\"conversation-turn-20\" data-turn-id=\"request-WEB:f0aa8435-bdb5-42ec-aa9c-832ab47fdd80-9\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" 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-message-model-slug=\"gpt-5-3\" dir=\"auto\" data-message-id=\"de3ec2dc-d3b1-4694-804a-622e0e031e8d\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-end=\"66\" data-start=\"0\"\u003e\u003cstrong data-end=\"66\" data-start=\"0\"\u003ePorsche 991 GT3 \/ GT3 RS Stainless Steel Catted Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"387\" data-start=\"68\"\u003eEngineered to elevate one of the most iconic high-revving platforms ever built, this stainless steel catted exhaust system unlocks the true voice and performance of the 991 GT3 and GT3 RS—without sacrificing refinement. Sharper, cleaner, and more exotic, this is the perfect balance of raw sound and everyday usability.\u003c\/p\u003e\n\u003chr data-end=\"392\" data-start=\"389\"\u003e\n\u003ch3 data-end=\"407\" data-start=\"394\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"407\" data-start=\"398\"\u003ePrice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"421\" data-start=\"408\"\u003e\u003cstrong data-end=\"421\" data-start=\"408\"\u003e$5,899.99\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"426\" data-start=\"423\"\u003e\n\u003ch3 data-end=\"443\" data-start=\"428\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"443\" data-start=\"432\"\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"747\" data-start=\"444\"\u003e\n\u003cli data-end=\"491\" data-start=\"444\"\u003ePorsche 911 GT3 (991.1 \u0026amp; 991.2 | 2014–2019)\u003c\/li\u003e\n\u003cli data-end=\"542\" data-start=\"492\"\u003ePorsche 911 GT3 RS (991.1 \u0026amp; 991.2 | 2016–2019)\u003c\/li\u003e\n\u003cli data-end=\"623\" data-start=\"543\"\u003eDirect bolt-on installation — no cutting or permanent modifications required\u003c\/li\u003e\n\u003cli data-end=\"674\" data-start=\"624\"\u003eDesigned for precise OEM fitment and alignment\u003c\/li\u003e\n\u003cli data-end=\"747\" data-start=\"675\"\u003eFully compatible with factory exhaust valve controls and drive modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"752\" data-start=\"749\"\u003e\n\u003ch3 data-end=\"777\" data-start=\"754\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"777\" data-start=\"758\"\u003eSound Character\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"828\" data-start=\"778\"\u003eRefined when you need it—ferocious when you don’t.\u003c\/p\u003e\n\u003cul data-end=\"1525\" data-start=\"830\"\u003e\n\u003cli data-end=\"958\" data-start=\"830\"\u003e\n\u003cstrong data-end=\"850\" data-start=\"832\"\u003eValves Closed:\u003c\/strong\u003e Deep, smooth tone with a refined, controlled presence. Comfortable for street driving with minimal drone.\u003c\/li\u003e\n\u003cli data-end=\"1153\" data-start=\"959\"\u003e\n\u003cstrong data-end=\"977\" data-start=\"961\"\u003eValves Open:\u003c\/strong\u003e High-pitched, motorsport-inspired scream with increased volume and exceptional clarity. Crisp throttle blips, sharp upshifts, and aggressive yet controlled overrun crackles.\u003c\/li\u003e\n\u003cli data-end=\"1387\" data-start=\"1154\"\u003e\n\u003cstrong data-end=\"1181\" data-start=\"1156\"\u003eCatted Configuration:\u003c\/strong\u003e Delivers a cleaner, smoother exhaust note compared to catless setups—reducing harshness and rasp while maintaining a strong, exotic tone. Perfect for those who want performance without excessive rawness.\u003c\/li\u003e\n\u003cli data-end=\"1525\" data-start=\"1388\"\u003e\n\u003cstrong data-end=\"1410\" data-start=\"1390\"\u003eOverall Profile:\u003c\/strong\u003e Balanced and sophisticated—enhancing the GT3’s signature 9,000 RPM character with a more defined, premium sound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1530\" data-start=\"1527\"\u003e\n\u003ch3 data-end=\"1563\" data-start=\"1532\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1563\" data-start=\"1536\"\u003eMaterials \u0026amp; Engineering\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2061\" data-start=\"1564\"\u003e\n\u003cli data-end=\"1665\" data-start=\"1564\"\u003eConstructed from \u003cstrong data-end=\"1615\" data-start=\"1583\"\u003epremium T304 stainless steel\u003c\/strong\u003e for maximum durability and corrosion resistance\u003c\/li\u003e\n\u003cli data-end=\"1773\" data-start=\"1666\"\u003eIntegrated \u003cstrong data-end=\"1713\" data-start=\"1679\"\u003ehigh-flow catalytic converters\u003c\/strong\u003e for improved emissions flow without excessive restriction\u003c\/li\u003e\n\u003cli data-end=\"1840\" data-start=\"1774\"\u003ePrecision TIG-welded for strength and a clean, high-end finish\u003c\/li\u003e\n\u003cli data-end=\"1916\" data-start=\"1841\"\u003eMandrel-bent piping ensures smooth airflow and optimal exhaust velocity\u003c\/li\u003e\n\u003cli data-end=\"1997\" data-start=\"1917\"\u003eEngineered to reduce backpressure while maintaining ideal exhaust scavenging\u003c\/li\u003e\n\u003cli data-end=\"2061\" data-start=\"1998\"\u003eDesigned to handle extreme heat from high-revving track use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2066\" data-start=\"2063\"\u003e\n\u003ch3 data-end=\"2096\" data-start=\"2068\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2096\" data-start=\"2072\"\u003ePerformance Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2334\" data-start=\"2097\"\u003e\n\u003cli data-end=\"2169\" data-start=\"2097\"\u003eIncreased exhaust flow for improved horsepower and throttle response\u003c\/li\u003e\n\u003cli data-end=\"2236\" data-start=\"2170\"\u003eReduced backpressure for a more efficient, free-revving engine\u003c\/li\u003e\n\u003cli data-end=\"2289\" data-start=\"2237\"\u003eOptimized balance of performance and drivability\u003c\/li\u003e\n\u003cli data-end=\"2334\" data-start=\"2290\"\u003eEnhanced engine note and driver feedback\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2339\" data-start=\"2336\"\u003e\n\u003ch3 data-end=\"2366\" data-start=\"2341\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2366\" data-start=\"2345\"\u003eWhat’s in the Box\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2612\" data-start=\"2367\"\u003e\n\u003cli data-end=\"2456\" data-start=\"2367\"\u003eFull stainless steel catted exhaust system (high-flow catted sections + rear exhaust)\u003c\/li\u003e\n\u003cli data-end=\"2495\" data-start=\"2457\"\u003eIntegrated valved muffler assembly\u003c\/li\u003e\n\u003cli data-end=\"2542\" data-start=\"2496\"\u003eAll required clamps, hardware, and gaskets\u003c\/li\u003e\n\u003cli data-end=\"2589\" data-start=\"2543\"\u003ePlug-and-play valve integration components\u003c\/li\u003e\n\u003cli data-end=\"2612\" data-start=\"2590\"\u003eInstallation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2617\" data-start=\"2614\"\u003e\n\u003ch3 data-end=\"2642\" data-start=\"2619\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2642\" data-start=\"2623\"\u003eWhy This System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2939\" data-start=\"2643\"\u003eThe 991 GT3 and GT3 RS are engineered for precision and emotion—but the factory exhaust limits their true acoustic potential. This catted system refines and amplifies the experience, delivering a cleaner, more exotic sound while maintaining the usability expected from a high-end performance car.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"3104\" data-start=\"2941\"\u003eFor enthusiasts who want the perfect blend of aggression, refinement, and engineering integrity—this is the exhaust system that brings the entire package together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Velocity Performance Parts","offers":[{"title":"Default Title","offer_id":48270396457209,"sku":"14:200004889#standard","price":5899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/files\/Sf761f78472a3466ebf0cc88b9061dadec.webp?v=1776217473"},{"product_id":"porsche-991-gt3-rs-stainless-steel-full-race-exhaust-system","title":"Porsche 991 GT3 \/ GT3RS Stainless Steel Valved Race Exhaust System","description":"\u003cp data-end=\"69\" data-start=\"0\"\u003e\u003cstrong data-end=\"69\" data-start=\"0\"\u003ePorsche 991 GT3 \/ GT3 RS T304 Stainless Steel Race Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"400\" data-start=\"71\"\u003eBuilt for drivers who want the rawest expression of Porsche’s 9,000 RPM flat-six, this race-spec exhaust system transforms the 991 GT3 and GT3 RS into a true motorsport machine. Louder, sharper, and significantly more aggressive—this is the upgrade that removes factory limitations and delivers a pure, track-inspired experience.\u003c\/p\u003e\n\u003chr data-end=\"405\" data-start=\"402\"\u003e\n\u003ch3 data-end=\"422\" data-start=\"407\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"422\" data-start=\"411\"\u003ePricing\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"511\" data-start=\"423\"\u003e\n\u003cli data-end=\"461\" data-start=\"423\"\u003e\n\u003cstrong data-end=\"449\" data-start=\"425\"\u003eCatless Race System:\u003c\/strong\u003e $6,299.99\u003c\/li\u003e\n\u003cli data-end=\"511\" data-start=\"462\"\u003e\n\u003cstrong data-end=\"499\" data-start=\"464\"\u003eCatted Race System (High-Flow):\u003c\/strong\u003e $6,899.99\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"516\" data-start=\"513\"\u003e\n\u003ch3 data-end=\"533\" data-start=\"518\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"533\" data-start=\"522\"\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"851\" data-start=\"534\"\u003e\n\u003cli data-end=\"581\" data-start=\"534\"\u003ePorsche 911 GT3 (991.1 \u0026amp; 991.2 | 2014–2019)\u003c\/li\u003e\n\u003cli data-end=\"632\" data-start=\"582\"\u003ePorsche 911 GT3 RS (991.1 \u0026amp; 991.2 | 2016–2019)\u003c\/li\u003e\n\u003cli data-end=\"713\" data-start=\"633\"\u003eDirect bolt-on installation — no cutting or permanent modifications required\u003c\/li\u003e\n\u003cli data-end=\"784\" data-start=\"714\"\u003ePrecision-engineered for OEM mounting points and perfect alignment\u003c\/li\u003e\n\u003cli data-end=\"851\" data-start=\"785\"\u003eCompatible with factory exhaust valve controls and drive modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"856\" data-start=\"853\"\u003e\n\u003ch3 data-end=\"881\" data-start=\"858\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"881\" data-start=\"862\"\u003eSound Character\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"929\" data-start=\"882\"\u003eThis is where the GT3 becomes truly unfiltered.\u003c\/p\u003e\n\u003cul data-end=\"1757\" data-start=\"931\"\u003e\n\u003cli data-end=\"1039\" data-start=\"931\"\u003e\n\u003cstrong data-end=\"951\" data-start=\"933\"\u003eValves Closed:\u003c\/strong\u003e Noticeably deeper and more present than stock, with a controlled but purposeful tone.\u003c\/li\u003e\n\u003cli data-end=\"1244\" data-start=\"1040\"\u003e\n\u003cstrong data-end=\"1058\" data-start=\"1042\"\u003eValves Open:\u003c\/strong\u003e Full race-derived scream—extreme volume, razor-sharp pitch, and immediate response. Expect violent overrun crackles, crisp upshifts, and a relentless top-end that mirrors a track car.\u003c\/li\u003e\n\u003cli data-end=\"1429\" data-start=\"1245\"\u003e\n\u003cstrong data-end=\"1273\" data-start=\"1247\"\u003eCatless Configuration:\u003c\/strong\u003e Maximum intensity and rawness. Unrestricted flow delivers the loudest, most aggressive V8-like bark at low RPM and a piercing flat-six scream at redline.\u003c\/li\u003e\n\u003cli data-end=\"1598\" data-start=\"1430\"\u003e\n\u003cstrong data-end=\"1457\" data-start=\"1432\"\u003eCatted Configuration:\u003c\/strong\u003e Retains race-level volume with a slightly smoother, more refined edge—reducing harshness while maintaining an exotic, high-frequency tone.\u003c\/li\u003e\n\u003cli data-end=\"1757\" data-start=\"1599\"\u003e\n\u003cstrong data-end=\"1621\" data-start=\"1601\"\u003eOverall Profile:\u003c\/strong\u003e Lightweight, high-energy sound with exceptional clarity and zero compromise—engineered for enthusiasts who want to be heard and felt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1762\" data-start=\"1759\"\u003e\n\u003ch3 data-end=\"1795\" data-start=\"1764\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1795\" data-start=\"1768\"\u003eMaterials \u0026amp; Engineering\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2272\" data-start=\"1796\"\u003e\n\u003cli data-end=\"1896\" data-start=\"1796\"\u003eConstructed from \u003cstrong data-end=\"1847\" data-start=\"1815\"\u003epremium T304 stainless steel\u003c\/strong\u003e for superior strength and corrosion resistance\u003c\/li\u003e\n\u003cli data-end=\"1975\" data-start=\"1897\"\u003ePrecision TIG-welded for structural integrity and a clean, high-end finish\u003c\/li\u003e\n\u003cli data-end=\"2052\" data-start=\"1976\"\u003eMandrel-bent tubing ensures maximum exhaust flow and minimal restriction\u003c\/li\u003e\n\u003cli data-end=\"2131\" data-start=\"2053\"\u003eRace-inspired design reduces backpressure for optimal high-RPM performance\u003c\/li\u003e\n\u003cli data-end=\"2217\" data-start=\"2132\"\u003eEngineered to withstand extreme heat cycles from aggressive driving and track use\u003c\/li\u003e\n\u003cli data-end=\"2272\" data-start=\"2218\"\u003eIntegrated valved system retains OEM functionality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2277\" data-start=\"2274\"\u003e\n\u003ch3 data-end=\"2307\" data-start=\"2279\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2307\" data-start=\"2283\"\u003ePerformance Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2577\" data-start=\"2308\"\u003e\n\u003cli data-end=\"2394\" data-start=\"2308\"\u003eSignificant increase in exhaust flow for improved horsepower and throttle response\u003c\/li\u003e\n\u003cli data-end=\"2462\" data-start=\"2395\"\u003eReduced backpressure for a more free-revving, responsive engine\u003c\/li\u003e\n\u003cli data-end=\"2508\" data-start=\"2463\"\u003eNoticeable weight savings vs. OEM exhaust\u003c\/li\u003e\n\u003cli data-end=\"2577\" data-start=\"2509\"\u003eEnhanced driver engagement through sound, feedback, and response\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2582\" data-start=\"2579\"\u003e\n\u003ch3 data-end=\"2609\" data-start=\"2584\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2609\" data-start=\"2588\"\u003eWhat’s in the Box\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"2930\" data-start=\"2610\"\u003e\n\u003cli data-end=\"2686\" data-start=\"2610\"\u003eFull T304 stainless steel race exhaust system (mid-pipes + rear section)\u003c\/li\u003e\n\u003cli data-end=\"2774\" data-start=\"2687\"\u003eCatless straight-through sections or high-flow catted sections (based on selection)\u003c\/li\u003e\n\u003cli data-end=\"2813\" data-start=\"2775\"\u003eIntegrated valved muffler assembly\u003c\/li\u003e\n\u003cli data-end=\"2860\" data-start=\"2814\"\u003eAll required clamps, hardware, and gaskets\u003c\/li\u003e\n\u003cli data-end=\"2907\" data-start=\"2861\"\u003ePlug-and-play valve integration components\u003c\/li\u003e\n\u003cli data-end=\"2930\" data-start=\"2908\"\u003eInstallation guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2935\" data-start=\"2932\"\u003e\n\u003ch3 data-end=\"2960\" data-start=\"2937\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2960\" data-start=\"2941\"\u003eWhy This System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"3225\" data-start=\"2961\"\u003eThe 991 GT3 and GT3 RS are engineered with motorsport DNA—but from the factory, they’re still restrained. This race exhaust system removes those boundaries, delivering a raw, uncompromising soundtrack and performance profile that matches the car’s true capability.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"3369\" data-start=\"3227\"\u003eFor owners who want their GT3 to sound like it belongs on a starting grid—not a showroom floor—this is the system that defines the experience.\u003c\/p\u003e","brand":"Velocity Performance Parts","offers":[{"title":"Catless \/ 4\" Slash Cut \/ Glossy Carbon Fiber","offer_id":48287138578681,"sku":"14:200004889#standard-2","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Slash Cut \/ Signature Satin Black","offer_id":48287143362809,"sku":"14:200004889#standard-3","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Slash Cut \/ Brushed","offer_id":48287143395577,"sku":"14:200004889#standard-4","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Slash Cut \/ Burnt\/Multicolor","offer_id":48287143428345,"sku":"14:200004889#standard-5","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Straight Cut \/ Glossy Carbon Fiber","offer_id":48287143461113,"sku":"14:200004889#standard-6","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Straight Cut \/ Signature Satin Black","offer_id":48287143493881,"sku":"14:200004889#standard-7","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Straight Cut \/ Brushed","offer_id":48287143526649,"sku":"14:200004889#standard-8","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catless \/ 4\" Straight Cut \/ Burnt\/Multicolor","offer_id":48287143559417,"sku":"14:200004889#standard-9","price":6299.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Slash Cut \/ Glossy Carbon Fiber","offer_id":48287138611449,"sku":"14:200004889#standard-14","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Slash Cut \/ Signature Satin Black","offer_id":48287143723257,"sku":"14:200004889#standard-15","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Slash Cut \/ Brushed","offer_id":48287143756025,"sku":"14:200004889#standard-16","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Slash Cut \/ Burnt\/Multicolor","offer_id":48287143788793,"sku":"14:200004889#standard-17","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Straight Cut \/ Glossy Carbon Fiber","offer_id":48287143821561,"sku":"14:200004889#standard-18","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Straight Cut \/ Signature Satin Black","offer_id":48287143854329,"sku":"14:200004889#standard-19","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Straight Cut \/ Brushed","offer_id":48287143887097,"sku":"14:200004889#standard-20","price":6899.99,"currency_code":"USD","in_stock":true},{"title":"Catted \/ 4\" Straight Cut \/ Burnt\/Multicolor","offer_id":48287143919865,"sku":"14:200004889#standard-21","price":6899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/files\/H35578c891d0b4d5d80bb2ff58ba107b2G.jpg?v=1776219380"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/7497\/7273\/collections\/4b7c85154207c77ab1943fb974d2a4ee.webp?v=1775427022","url":"https:\/\/www.velocityperformanceparts.com\/collections\/991-gt3-rs.oembed","provider":"Velocity Performance Parts","version":"1.0","type":"link"}