{"product_id":"valvetronic-designs-400-cell-catted-downpipe-porsche-992-gt3-gt3-rs","title":"Valvetronic Designs 400 Cell Catted Downpipe - Porsche 992 GT3 \/ GT3 RS","description":"\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for 992 GT3\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Porsche 992 GT3 and GT3 RS are motorsport-derived machines built around a 9,000 RPM naturally aspirated flat-six. While the factory catalysts prioritize restriction and sound control, our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare engineered to reduce exhaust backpressure, improve high-RPM breathing, and enhance the engine’s unmistakable motorsport character — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp\u003eThis upgrade preserves the integrity of the GT3 platform while allowing the engine to operate with greater efficiency and clarity at redline.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to 400 Cell?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA-Compliant 400 Cell High-Flow Catalysts:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncreased exhaust efficiency while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved High-RPM Flow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReduced restriction enhances top-end breathing and throttle precision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Motorsport Character:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSharper, more defined exhaust note at elevated RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack-Focused Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOptimized for spirited driving and circuit use without sacrificing reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eEngineering \u0026amp; Performance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow Architecture:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to minimize backpressure while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSmooth internal transitions for consistent exhaust velocity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG Welding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBuilt to withstand extreme exhaust temperatures during sustained high-RPM operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizes factory mounting locations for seamless fitment.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered to Pair with Valvetronic Exhaust Systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSound Character\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNoticeable increase in clarity and presence with improved high-frequency resonance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValvetronic Exhaust + Downpipes:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMaximum transformation — sharper transitions, heightened induction character, and a more race-inspired signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eConstruction \u0026amp; Durability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under sustained high-RPM conditions\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":51097196134704,"sku":"POR.992.GT3RS.FFH.400C.BR","price":4830.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/7582\/4176\/files\/DSC07855_ShopifyCustomSize.webp?v=1773331388","url":"https:\/\/es-performance.com\/fr-us\/products\/valvetronic-designs-400-cell-catted-downpipe-porsche-992-gt3-gt3-rs","provider":"Eurosport Performance","version":"1.0","type":"link"}