{"product_id":"catalytic-converter-for-cadillac-cts-2010-2011-3-0l-left-right","title":"Catalytic Converter for Cadillac CTS (2010-2011) 3.0L Left \u0026 Right","description":"\u003ch2\u003eDirect-Fit Dual Catalytic Converter Set for 2010-2011 Cadillac CTS\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter assembly replaces degraded factory emissions units on the 2010-2011 CTS to eliminate exhaust restriction, resolve emissions failure codes, and restore proper exhaust flow velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Cadillac CTS Catalytic Degradation\u003c\/h3\u003e\n\u003cp\u003eUnder the compact packaging of the \u003cstrong\u003eSigma II\u003c\/strong\u003e chassis, the high-revving direct-injected \u003cstrong\u003eLF1\u003c\/strong\u003e V6 engine generates significant exhaust manifold heat. Over extended mileage, continuous thermal cycling leads to ceramic core breakdown, washcoat erosion, and interior substrate sintering. This deterioration chokes exhaust scavenging, drives up cylinder backpressure, degrades fuel economy, and triggers recurring P0420\/P0430 diagnostic trouble codes from compromised oxygen storage capacity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis left and right catalytic converter system utilizes high-grade, corrosion-resistant stainless steel tubing configured for exact OEM clearance geometry. Internally, a dense ceramic honeycomb substrate provides maximum surface area contact for efficient exhaust gas conversion while preserving unrestricted exhaust gas evacuation. Precision-stamped flanges, integrated factory-location O2 sensor bungs, and heavy-duty seams prevent pre-converter leaks and withstand thermal shock without cracking.\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; margin-bottom: 20px;\"\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;\"\u003e2010-2011 Cadillac CTS\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\u003eLF1\u003c\/strong\u003e 3.0L V6 \/ \u003cstrong\u003eSigma II\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;\"\u003e270 hp \/ 223 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;\"\u003e\u003cstrong\u003e51547\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2010 Cadillac CTS 3.0L V6 (Left \u0026amp; Right)\u003c\/li\u003e\n  \u003cli\u003e2011 Cadillac CTS 3.0L V6 (Left \u0026amp; Right)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the Sigma II CTS?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2010-2011 Cadillac CTS equipped with the \u003cstrong\u003eLF1\u003c\/strong\u003e 3.0L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this assembly resolve P0420 and P0430 diagnostic trouble codes?\u003c\/strong\u003e\u003cbr\u003e Yes, the fresh ceramic substrate restores chemical washcoat efficiency to maintain factory oxygen conversion rates and eliminate emissions CEL codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Cadillac Refinement Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to preserve the acoustic isolation and precise powerband of Cadillac luxury sport platforms, this direct-fit converter system maintains factory drone suppression, balanced backpressure, and complete EPA federal emissions compliance without ECM tuning.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501751800056,"sku":"DS-EIS0DWFYV","price":309.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-cadillac-cts-2010-2011-3-0l-left-right-1.jpg?v=1789332089","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-cadillac-cts-2010-2011-3-0l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}