{"product_id":"porsche-971-panamera-turbo-gts-valvetronic-exhaust-system-yonristic-performance","title":"Porsche 971 Panamera Turbo \/ GTS Valvetronic Exhaust System - Yonristic Performance","description":"\u003cp data-start=\"1166\" data-end=\"1702\"\u003eAt the core of this system is a \u003cstrong data-start=\"1198\" data-end=\"1238\"\u003etrue performance-driven architecture\u003c\/strong\u003e designed specifically around the airflow demands and firing order of Porsche’s 4.0L V8. From the inlet to the rear section, the exhaust uses a carefully optimized layout that minimizes turbulence and pressure buildup while maintaining exhaust gas velocity. The internal flow path is engineered to enhance scavenging and balance pressure waves between banks, resulting in a sharper throttle response and a smoother, more linear power delivery across the rev range.\u003c\/p\u003e\n\u003cp data-start=\"1704\" data-end=\"2253\"\u003eThe system incorporates an \u003cstrong data-start=\"1731\" data-end=\"1761\"\u003eactive valved rear section\u003c\/strong\u003e, allowing the exhaust to operate in two distinct personalities. With the valves closed, exhaust gases are routed through a tuned internal path that suppresses drone and unwanted resonance, keeping the cabin refined during highway cruising and daily use. Open the valves, and the flow transitions to a more direct, straight-through path—unlocking maximum volume, aggressive overrun character, and a high-energy, exotic V8 tone that builds cleanly with RPM rather than breaking into harshness.\u003c\/p\u003e\n\u003cp data-start=\"2255\" data-end=\"2761\"\u003eEvery component is \u003cstrong data-start=\"2274\" data-end=\"2303\"\u003ehand-built and TIG-welded\u003c\/strong\u003e, using casted transitions and collectors where necessary to ensure smooth internal geometry and consistent wall thickness. The system is designed using underbody scan data to maintain perfect clearance, OEM-style mounting points, and a true bolt-on installation with no cutting or welding required. Whether paired with a stock vehicle or a tuned setup, this exhaust provides the airflow headroom and acoustic control demanded by high-output Panamera builds.\u003c\/p\u003e\n\u003ch2 data-start=\"2768\" data-end=\"2825\"\u003ePerformance Gains\u003c\/h2\u003e\n\u003cp data-start=\"2827\" data-end=\"3022\"\u003eWhen installed on an otherwise stock Porsche 971 Panamera Turbo or GTS, owners can expect \u003cstrong data-start=\"2917\" data-end=\"2956\"\u003emeasurable performance improvements\u003c\/strong\u003e due to reduced backpressure and improved exhaust flow efficiency:\u003c\/p\u003e\n\u003cul data-start=\"3024\" data-end=\"3261\"\u003e\n\u003cli data-start=\"3024\" data-end=\"3078\"\u003e\n\u003cp data-start=\"3026\" data-end=\"3078\"\u003e\u003cstrong data-start=\"3026\" data-end=\"3046\"\u003eHorsepower Gain:\u003c\/strong\u003e\u003cbr data-start=\"3046\" data-end=\"3049\"\u003e\u003cstrong data-start=\"3051\" data-end=\"3064\"\u003e+22–30 HP\u003c\/strong\u003e at higher RPM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3080\" data-end=\"3170\"\u003e\n\u003cp data-start=\"3082\" data-end=\"3170\"\u003e\u003cstrong data-start=\"3082\" data-end=\"3098\"\u003eTorque Gain:\u003c\/strong\u003e\u003cbr data-start=\"3098\" data-end=\"3101\"\u003e\u003cstrong data-start=\"3103\" data-end=\"3119\"\u003e+20–28 lb-ft\u003c\/strong\u003e, particularly noticeable in mid-range acceleration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3172\" data-end=\"3261\"\u003e\n\u003cp data-start=\"3174\" data-end=\"3261\"\u003e\u003cstrong data-start=\"3174\" data-end=\"3196\"\u003eThrottle Response:\u003c\/strong\u003e\u003cbr data-start=\"3196\" data-end=\"3199\"\u003eSharper turbo response and improved transient boost recovery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3263\" data-end=\"3427\"\u003eWith ECU tuning, these gains can increase further, as the engine is able to fully take advantage of the reduced exhaust restriction and improved thermal efficiency.\u003c\/p\u003e\n\u003chr data-start=\"3429\" data-end=\"3432\"\u003e\n\u003ch2 data-start=\"3434\" data-end=\"3455\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cp data-start=\"3457\" data-end=\"3474\"\u003e\u003cstrong data-start=\"3457\" data-end=\"3474\"\u003eConfiguration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3475\" data-end=\"3624\"\u003e\n\u003cli data-start=\"3475\" data-end=\"3512\"\u003e\n\u003cp data-start=\"3477\" data-end=\"3512\"\u003ePerformance cat-back exhaust system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3513\" data-end=\"3574\"\u003e\n\u003cp data-start=\"3515\" data-end=\"3574\"\u003eOptimized internal flow architecture for 4.0L twin-turbo V8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3575\" data-end=\"3624\"\u003e\n\u003cp data-start=\"3577\" data-end=\"3624\"\u003eActive valved rear section with dual flow paths\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3626\" data-end=\"3643\"\u003e\u003cstrong data-start=\"3626\" data-end=\"3643\"\u003eValve Control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3644\" data-end=\"3831\"\u003e\n\u003cli data-start=\"3644\" data-end=\"3696\"\u003e\n\u003cp data-start=\"3646\" data-end=\"3696\"\u003e\u003cstrong data-start=\"3646\" data-end=\"3696\"\u003eFactory drive-mode valve integration supported\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3697\" data-end=\"3775\"\u003e\n\u003cp data-start=\"3699\" data-end=\"3775\"\u003e\u003cstrong data-start=\"3699\" data-end=\"3739\"\u003eIncluded remote valve control module\u003c\/strong\u003e for independent on-demand operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3776\" data-end=\"3831\"\u003e\n\u003cp data-start=\"3778\" data-end=\"3831\"\u003eSeamless switching between quiet and aggressive modes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3833\" data-end=\"3861\"\u003e\u003cstrong data-start=\"3833\" data-end=\"3861\"\u003eMaterials \u0026amp; Construction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3862\" data-end=\"4106\"\u003e\n\u003cli data-start=\"3862\" data-end=\"3938\"\u003e\n\u003cp data-start=\"3864\" data-end=\"3938\"\u003eAvailable in \u003cstrong data-start=\"3877\" data-end=\"3905\"\u003eAISI 304 Stainless Steel\u003c\/strong\u003e or \u003cstrong data-start=\"3909\" data-end=\"3938\"\u003e4AL-6V (Grade 5) Titanium\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3939\" data-end=\"3985\"\u003e\n\u003cp data-start=\"3941\" data-end=\"3985\"\u003eFully TIG-welded, hand-finished construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3986\" data-end=\"4050\"\u003e\n\u003cp data-start=\"3988\" data-end=\"4050\"\u003eCasted collectors and transitions for optimal internal airflow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4051\" data-end=\"4106\"\u003e\n\u003cp data-start=\"4053\" data-end=\"4106\"\u003eHeat-resistant design for sustained high-load driving\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4108\" data-end=\"4116\"\u003e\u003cstrong data-start=\"4108\" data-end=\"4116\"\u003eTips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4117\" data-end=\"4197\"\u003e\n\u003cli data-start=\"4117\" data-end=\"4141\"\u003e\n\u003cp data-start=\"4119\" data-end=\"4141\"\u003eQuad-tip configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4142\" data-end=\"4197\"\u003e\n\u003cp data-start=\"4144\" data-end=\"4197\"\u003eOptional finishes available (depending on build spec)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4199\" data-end=\"4215\"\u003e\u003cstrong data-start=\"4199\" data-end=\"4215\"\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4216\" data-end=\"4328\"\u003e\n\u003cli data-start=\"4216\" data-end=\"4243\"\u003e\n\u003cp data-start=\"4218\" data-end=\"4243\"\u003e100% bolt-on installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4244\" data-end=\"4270\"\u003e\n\u003cp data-start=\"4246\" data-end=\"4270\"\u003eUses OEM mounting points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4271\" data-end=\"4328\"\u003e\n\u003cp data-start=\"4273\" data-end=\"4328\"\u003eNo cutting, welding, or permanent modification required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4330\" data-end=\"4333\"\u003e\n\u003ch2 data-start=\"4335\" data-end=\"4353\"\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cul data-start=\"4355\" data-end=\"4591\"\u003e\n\u003cli data-start=\"4355\" data-end=\"4399\"\u003e\n\u003cp data-start=\"4357\" data-end=\"4399\"\u003e\u003cstrong data-start=\"4357\" data-end=\"4389\"\u003ePorsche Panamera Turbo (971)\u003c\/strong\u003e – 2017+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4400\" data-end=\"4458\"\u003e\n\u003cp data-start=\"4402\" data-end=\"4458\"\u003e\u003cstrong data-start=\"4402\" data-end=\"4448\"\u003ePorsche Panamera Turbo Sport Turismo (971)\u003c\/strong\u003e – 2017+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4459\" data-end=\"4501\"\u003e\n\u003cp data-start=\"4461\" data-end=\"4501\"\u003e\u003cstrong data-start=\"4461\" data-end=\"4491\"\u003ePorsche Panamera GTS (971)\u003c\/strong\u003e – 2019+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4502\" data-end=\"4558\"\u003e\n\u003cp data-start=\"4504\" data-end=\"4558\"\u003e\u003cstrong data-start=\"4504\" data-end=\"4548\"\u003ePorsche Panamera GTS Sport Turismo (971)\u003c\/strong\u003e – 2019+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4559\" data-end=\"4591\"\u003e\n\u003cp data-start=\"4561\" data-end=\"4591\"\u003eEngine: \u003cstrong data-start=\"4569\" data-end=\"4591\"\u003e4.0L Twin-Turbo V8\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"4593\" data-end=\"4596\"\u003e\n\u003ch2 data-start=\"4598\" data-end=\"4652\"\u003eWhy This Exhaust Is Different — Three Unique Points\u003c\/h2\u003e\n\u003ch3 data-start=\"4654\" data-end=\"4699\"\u003e1. Factory Integration + Remote Freedom\u003c\/h3\u003e\n\u003cp data-start=\"4700\" data-end=\"4914\"\u003eUnlike systems that force you to choose one or the other, this exhaust supports \u003cstrong data-start=\"4780\" data-end=\"4853\"\u003eboth OEM drive-mode valve control and an included remote valve system\u003c\/strong\u003e, giving you total authority over sound behavior at any time.\u003c\/p\u003e\n\u003ch3 data-start=\"4916\" data-end=\"4950\"\u003e2. Engineered, Not Just Loud\u003c\/h3\u003e\n\u003cp data-start=\"4951\" data-end=\"5157\"\u003eThe internal layout is designed to \u003cstrong data-start=\"4986\" data-end=\"5021\"\u003econtrol pressure waves and flow\u003c\/strong\u003e, delivering a clean, exotic V8 tone without rasp or drone—especially critical for a long-wheelbase performance sedan like the Panamera.\u003c\/p\u003e\n\u003ch3 data-start=\"5159\" data-end=\"5201\"\u003e3. Premium Materials, No Compromises\u003c\/h3\u003e\n\u003cp data-start=\"5202\" data-end=\"5396\"\u003eChoose between \u003cstrong data-start=\"5217\" data-end=\"5260\"\u003eAISI 304 stainless steel for durability\u003c\/strong\u003e or \u003cstrong data-start=\"5264\" data-end=\"5334\"\u003e4AL-6V titanium for maximum weight reduction and sharper acoustics\u003c\/strong\u003e, with every unit hand-built and casted where it matters most.\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":53332881735987,"sku":"YR-9594-POR-CAT","price":2799.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Black","offer_id":53332881768755,"sku":"YR-2123-POR-CAT","price":2799.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Titanium 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