{"product_id":"valvetronic-designs-400-cell-downpipes-porsche-992-turbo-s","title":"Valvetronic Designs Catted Downpipes Porsche 992 Turbo 2021-2025","description":"\u003cp\u003eThe 992 Turbo and Turbo S have plenty of power, but the factory catalysts mute the 3.8L flat-six and slow the turbos. These catted downpipes use 400 cell high-flow catalysts, so the engine breathes better and sounds clearer at high rpm, with the catalysts still in place.\u003c\/p\u003e\n\u003cp\u003ePennsylvania-based Valvetronic Designs began in 2017. Its 992 Turbo downpipe uses 400-cell catalysts rather than an open race-pipe design.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e400 cell high-flow catalyst cores\u003c\/li\u003e\n\u003cli\u003eSharper turbo response and cleaner throttle feel\u003c\/li\u003e\n\u003cli\u003eFuller tone at high rpm, better still with a Valvetronic Designs exhaust\u003c\/li\u003e\n\u003cli\u003eMandrel-bent stainless steel with TIG welds\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement and factory mounting points\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese downpipes sit between the turbochargers and the rest of the exhaust. They are a different upgrade from a rear-section muffler: the 400-cell catalysts change the restriction close to the turbo outlets while retaining catalytic cores. The stainless tubing uses mandrel bends to keep the routing smooth, and the sensor positions follow the factory layout.\u003c\/p\u003e\u003cp\u003eThe effect depends on the exhaust behind them. With the stock exhaust, Valvetronic describes more depth and a clearer turbo sound. Paired with its exhaust system, the downpipes add a stronger turbo presence and a sharper tone. This listing is the catted pair, not catless race pipes, a cat-back kit or a bundle of both.\u003c\/p\u003e\u003cp\u003eThe 400-cell cores are the defining difference between these catted downpipes and free-flow race pipes. Valvetronic combines them with stainless construction and OEM-style sensor placement to suit the twin-turbo layout. The catalysts remain in the exhaust stream, but the replacement assembly is designed to reduce restriction relative to the factory pieces. The cell count is a catalyst specification, not a tuning recommendation or a guarantee of registration compliance.\u003c\/p\u003e\u003cp\u003eThis kit is for the conventional twin-turbo 3.8L Turbo application identified below. It is not a Carrera downpipe, a GT3 header or a 3.6L T-Hybrid component. A rear exhaust can change the result further, but it remains a separate purchase. Treat the downpipes and cat-back as different parts of the exhaust path rather than interchangeable names for one product.\u003c\/p\u003e\n\u003ch2\u003eWhat is included\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003ePair of catted downpipes with 400 cell catalysts\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003ePart numbers and configuration\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003ePOR.992.TUR.FF.400C.BR\u003c\/strong\u003e - Vehicle-specific exhaust configuration.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCatalyst: 400 cell, high flow\u003c\/li\u003e\n\u003cli\u003eType: Catted Downpipe\u003c\/li\u003e\n\u003cli\u003eMaterial: stainless steel\u003c\/li\u003e\n\u003cli\u003eEngine: 3.8L twin-turbo flat-six\u003c\/li\u003e\n\u003cli\u003eSKU: POR.992.TUR.FF.400C.BR\u003c\/li\u003e\n\u003cli\u003eManufacturer application \/ configuration: 400 Cell Catted Down Pipes For Porsche 992 Turbo \/ Turbo S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCheck the emissions rules that apply where you drive.\u003c\/li\u003e\n\u003cli\u003eFor the 3.8L 992.1 Turbo and Turbo S only. Not the 3.6L T-Hybrid Turbo S or other 992.2 applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003eWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov\u003c\/small\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#03589c;color:#fff\"\u003e\n\u003cth style=\"padding:6px;text-align:left\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:6px;text-align:left\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:6px;text-align:left\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding:6px;text-align:left\"\u003eYear\u003c\/th\u003e\n\u003cth style=\"padding:6px;text-align:left\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr style=\"background:#e8f4f8\"\u003e\n\u003ctd style=\"padding:6px\"\u003ePorsche\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e911 Turbo \/ Turbo S\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e992.1\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e2021-2025\u003c\/td\u003e\n\u003ctd style=\"padding:6px\"\u003e3.8L twin-turbo flat-six\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":68006745866391,"sku":"POR.992.TUR.FF.400C.BR","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2641\/0682\/files\/DSC08193_ShopifyCustomSize.jpg?v=1791162414","url":"https:\/\/autotalent.com\/products\/valvetronic-designs-400-cell-downpipes-porsche-992-turbo-s","provider":"AutoTalent","version":"1.0","type":"link"}