{"product_id":"catalytic-converter-for-gmc-acadia-2009-2016-3-6l-front-left-right-rear","title":"Catalytic Converter for GMC Acadia (2009-2016) 3.6L Front Left \u0026 Right \u0026 Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Replacement Catalytic Converter Set for 2009-2016 GMC Acadia (Lambda Platform)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter assembly replaces degraded factory manifold and underfloor converters on the 2009-2016 GMC Acadia to clear diagnostic trouble codes (DTC P0420\/P0430) and restore clean exhaust flow.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GMC Acadia Substrate Deterioration and Flange Fatigue\u003c\/h3\u003e\n\u003cp\u003eFactory close-coupled manifold converters on the \u003cstrong\u003eLambda\u003c\/strong\u003e platform endure extreme thermal cycling, exhaust gas reversion, and oil vapor contamination common to high-mileage direct-injected engines. Over time, the internal OEM ceramic honeycombs fracture, washcoat wash-off occurs, and substrate melting creates severe exhaust backpressure. This restriction chokes exhaust scavenging, elevates cylinder head temperatures, and triggers recurring check engine lights. Furthermore, the transverse engine layout exerts excessive stress on the stock flex joints, resulting in shearing and unmetered post-combustion exhaust leaks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a full 3-piece assembly (front left bank 2, front right bank 1, and rear underfloor), this replacement system utilizes robust \u003cstrong\u003estainless steel\u003c\/strong\u003e construction designed to withstand corrosive exhaust condensates and high thermal loads. High-efficiency ceramic substrates feature optimized cell density to maximize exhaust gas surface interaction and emissions scrubbing without creating excessive exhaust backpressure. Precision laser-cut flanges bolt up directly to cylinder heads and the downstream intermediate exhaust pipe, while an integrated stainless steel flex section absorbs transverse engine pitch under heavy torque loads to prevent premature weld cracking.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100% style=\" border-collapse: collapse border: solid font-size: min-width:\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;\"\u003e2009-2016 GMC Acadia\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;\"\u003e\n\u003cstrong\u003e3.6L LLT V6\u003c\/strong\u003e \/ \u003cstrong\u003eLambda\u003c\/strong\u003e\n\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;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e288 hp \/ 270 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;\"\u003e16709, 16710, 50484, 16574\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2009-2016 GMC Acadia 3.6L V6 (SL, SLE, SLT, Denali)\u003c\/li\u003e\n  \u003cli\u003eNote: Excludes 2017 Acadia Limited and redesigned C1XX models\u003c\/li\u003e\n  \u003cli\u003eEmissions: EPA compliant (46-state legal; not legal for sale\/use in CA, NY, CO, or ME)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the Lambda Acadia?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2009-2016 GMC Acadia equipped with the \u003cstrong\u003e3.6L LLT V6\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill installing this resolve active P0420 and P0430 DTCs?\u003c\/h4\u003e\n\u003cp\u003eYes, provided the upstream fueling system, spark plugs, and oxygen sensors are functioning within factory closed-loop parameters.\u003c\/p\u003e\n\n\u003ch3\u003eThe GMC Heavy-Duty Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the sustained thermal demands of family hauling and 5,200-lb towing capacities, these converters preserve factory tow performance and eliminate flow restrictions under loaded acceleration.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537677353208,"sku":"DS-E9RRUHD4N","price":239.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-gmc-acadia-2009-2016-3-6l-front-left-right-rear-1.jpg?v=1790613807","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-gmc-acadia-2009-2016-3-6l-front-left-right-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}