{"product_id":"catalytic-converter-for-porsche-cayenne-2008-2010-3-6l-front","title":"Catalytic Converter for Porsche Cayenne (2008-2010) 3.6L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Catalytic Converters for 2008-2010 Porsche Cayenne (957)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This pair of direct-fit front catalytic converter downpipes replaces degraded factory converters on the 2008-2010 \u003cstrong\u003ePorsche Cayenne 957\u003c\/strong\u003e 3.6L to restore exhaust flow, eliminate catalyst faults, and maintain EPA-compliant emissions.\u003c\/p\u003e\u003ch3\u003eThe Stock Porsche Cayenne Catalyst Failure\u003c\/h3\u003e\u003cp\u003eThermal cycling degrades the OEM front converters on the \u003cstrong\u003eM55.01 3.6L VR6\u003c\/strong\u003e, causing washcoat depletion and ceramic substrate fracture. Broken honeycomb creates exhaust rattles, excessive backpressure, and P0420\/P0430 codes, while fatigued flex joints leak exhaust upstream of the O2 sensors.\u003c\/p\u003e\u003ch3\u003eThe Direct-Fit Stainless Solution\u003c\/h3\u003e\u003cp\u003eBuilt for bolt-on service, these stainless steel downpipes feature factory 3-bolt flanges, hangers, and O2 bungs. Braided flex joints absorb engine movement to prevent flange stress, while a precious-metal ceramic honeycomb substrate restores HC, CO, and NOx conversion without cutting or welding.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 x Front Catalytic Converter Downpipes (pair)\u003c\/li\u003e\n\u003cli\u003e4 x 3-Bolt Flange Gaskets\u003c\/li\u003e\n\u003cli\u003e12 x Bolts with nuts and washers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2008-2010 Porsche Cayenne\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eM55.01 3.6L VR6 \/ 957\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFactory Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e290 hp \/ 283 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2008 Porsche Cayenne Base (3.6L V6 - Front Pair)\u003c\/li\u003e\n\u003cli\u003e2009 Porsche Cayenne Base (3.6L V6 - Front Pair)\u003c\/li\u003e\n\u003cli\u003e2010 Porsche Cayenne Base (3.6L V6 - Front Pair)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the 957 Cayenne?\u003c\/h4\u003e\u003cp\u003eYes, this is a direct fit for the 2008-2010 Porsche Cayenne equipped with the \u003cstrong\u003eM55.01\u003c\/strong\u003e 3.6L V6 engine. \u003cstrong\u003eNot compatible with Cayenne S, GTS, or Turbo V8 models, and not CARB-approved for vehicles registered in California, New York, Colorado, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eAre oxygen sensors included, and will this clear P0420\/P0430?\u003c\/h4\u003e\u003cp\u003eNo—transfer your existing O2 sensors or install new ones; replacing a worn converter resolves catalyst-efficiency codes once exhaust leaks and sensor faults are ruled out.\u003c\/p\u003e\u003ch3\u003eThe Porsche Precision Standard\u003c\/h3\u003e\u003cp\u003eBuilt for European emissions precision, these downpipes restore factory exhaust flow, silence rattles, and keep your \u003cstrong\u003e957\u003c\/strong\u003e Cayenne CEL-free.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68083714916600,"sku":"DS-ECR9M2AV5","price":276.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-porsche-cayenne-2008-2010-3-6l-front-1.jpg?v=1794531971","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-porsche-cayenne-2008-2010-3-6l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}