{"product_id":"catalytic-converter-for-buick-lacrosse-2010-2014-2-4l","title":"Catalytic Converter for Buick LaCrosse (2010-2014) 2.4L","description":"\u003ch2\u003eDirect-Fit Catalytic Converter for 2010-2014 Buick LaCrosse\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrimary Function:\u003c\/strong\u003e Restores factory exhaust scavenging efficiency and emissions compliance on the 2.4L Ecotec powertrain by replacing clogged or degraded factory catalytic substrates.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock LaCrosse Exhaust Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eOver extended operating cycles, factory ceramic washcoats in the high-temperature manifold-adjacent position experience thermal degradation and carbon fouling. On the GM 2.4L direct-injection platforms, oil consumption issues and unburnt hydrocarbons frequently lead to washcoat sintering, catalyst poisoning, and internal structural meltdown. This degradation restricts exhaust backpressure, triggers persistent P0420 diagnostic trouble codes, diminishes scavenging efficiency, and creates elevated cylinder head thermal retention.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-in replacement, this direct-fit catalytic assembly features a heavy-gauge stainless steel outer shell designed to withstand thermal cycling and resist road-salt corrosion. Inside, a high-efficiency ceramic honeycomb monolith provides optimized noble metal surface area to scrub hydrocarbons and nitrogen oxides without throttling exhaust gas velocity. Precision laser-cut flanges match factory manifold studs and downpipe mating surfaces, eliminating flange distortion and exhaust leaks while retaining the stock post-catalyst O2 sensor port location.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2010-2014 Buick LaCrosse\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2.4L Ecotec (LAF\/LEA) \/ GM Epsilon II\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e182 hp \/ 172 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e16776, 19612\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010 Buick LaCrosse 2.4L L4 (Front Placement)\u003c\/li\u003e\n  \u003cli\u003e2011 Buick LaCrosse 2.4L L4 (Front Placement)\u003c\/li\u003e\n  \u003cli\u003e2012 Buick LaCrosse 2.4L L4 (Front Placement)\u003c\/li\u003e\n  \u003cli\u003e2013 Buick LaCrosse 2.4L L4 (Front Placement)\u003c\/li\u003e\n  \u003cli\u003e2014 Buick LaCrosse 2.4L L4 (Front Placement)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Buick Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to clear check engine lights and eliminate exhaust leaks, this assembly delivers exact factory-matched flange tolerances and sensor port geometry to maintain balanced low-end torque and seamless OBD-II emissions readiness.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50464848249080,"sku":"DS-EJQZBW1FI","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-buick-lacrosse-2010-2014-2-4l-1.jpg?v=1788889006","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-buick-lacrosse-2010-2014-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}