{"product_id":"catalytic-converter-for-bmw-x3-2007-2010-3-0l-left-right","title":"Catalytic Converter for BMW X3 (2007-2010) 3.0L Left \u0026 Right","description":"\u003ch2\u003eDirect-Fit Catalytic Converter Assembly for 2007-2010 BMW X3\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Left and Right Direct-Fit Catalytic Converter Assembly replaces degraded factory manifold converters on the 2007-2010 BMW X3 to clear catalyst efficiency trouble codes and restore proper exhaust scavenging.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock BMW X3 Exhaust Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eHigh-mileage \u003cstrong\u003eBMW E83\u003c\/strong\u003e models equipped with the naturally aspirated \u003cstrong\u003eN52\u003c\/strong\u003e inline-six engine frequently suffer from catalyst substrate deterioration. Sustained high operating temperatures combined with residual oil vapor from aging crankcase ventilation (CCV) systems degrade the factory washcoat. This degradation triggers persistent P0420 and P0430 diagnostic trouble codes (DTCs). Internal sintering or ceramic substrate fracture creates turbulent exhaust restriction, increasing cylinder head backpressure, stifling top-end airflow, and reducing fuel economy across daily driving cycles.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on exhaust manifold and downpipe replacement, this direct-fit catalytic converter pair resolves backpressure bottlenecks while meeting federal emissions benchmarks. Fabricated from corrosion-resistant \u003cstrong\u003estainless steel\u003c\/strong\u003e tubing, the assemblies feature robust ceramic honeycomb substrates washcoated with precious metal catalysts to optimize exhaust gas conversion. Precision-machined, thick-gauge flanges eliminate exhaust gas leakage, while factory-located oxygen sensor bungs maintain stock O2 harness routing without wiring modifications. Included installation hardware and exhaust seals ensure a positive, leak-free seal directly to the cylinder head and mid-pipe flanges.\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;\"\u003e2007-2010 BMW X3\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\u003eN52B30\u003c\/strong\u003e \/ \u003cstrong\u003eE83\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;\"\u003e260 hp \/ 225 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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2007 BMW X3 3.0si (3.0L L6 - Gas)\u003c\/li\u003e\n  \u003cli\u003e2008 BMW X3 3.0si (3.0L L6 - Gas)\u003c\/li\u003e\n  \u003cli\u003e2009 BMW X3 xDrive30i (3.0L L6 - Gas)\u003c\/li\u003e\n  \u003cli\u003e2010 BMW X3 xDrive30i (3.0L L6 - Gas)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the E83 X3?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2010 BMW X3 equipped with the 3.0L \u003cstrong\u003eN52\u003c\/strong\u003e inline-six engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this converter set resolve P0420 and P0430 check engine lights?\u003c\/strong\u003e\u003cbr\u003e Provided upstream oxygen sensors and fueling systems function properly, this fresh catalytic substrate will restore factory emissions conversion efficiency and clear catalyst efficiency trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to maintain European factory engine management calibration, this assembly ensures consistent exhaust gas velocity and sensor feedback to keep your instrument cluster free of check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501743345912,"sku":"DS-EZ5N5LO4B","price":397.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-bmw-x3-2007-2010-3-0l-left-right-1.jpg?v=1789331763","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-bmw-x3-2007-2010-3-0l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}