{"product_id":"catalytic-converter-for-mazda-cx-7-2007-2009-2-3l-rear","title":"Catalytic Converter for Mazda CX-7 (2007-2009) 2.3L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2007-2009 Mazda CX-7\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit rear catalytic converter replaces the aged or clogged secondary emissions assembly on the 2007-2009 Mazda CX-7 to restore factory exhaust velocity, eliminate catalyst efficiency diagnostic trouble codes, and reduce downstream backpressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Mazda CX-7 Thermal Degradation \u0026amp; Catalyst Washcoat Depletion\u003c\/h3\u003e\n\u003cp\u003eThe turbocharged \u003cstrong\u003eMZR L3-VDT\u003c\/strong\u003e powerplant in the \u003cstrong\u003eER\u003c\/strong\u003e chassis operates at elevated exhaust gas temperatures (EGTs), which heavily tax the secondary exhaust circuit. Over time, the factory rear converter suffers from catalyst washcoat thermal degradation, sintering of active precious metals, and carbon fouling caused by high-pressure direct-injection blow-by. As internal cell channels clog, exhaust backpressure spikes dramatically, bottlenecking turbo spool, elevating combustion chamber temperatures, and triggering persistent downstream P0420\/P0421 threshold error codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on emissions solution, this rear assembly features a high-grade \u003cstrong\u003estainless steel\u003c\/strong\u003e outer shell designed to resist galvanic corrosion, thermal cycling fatigue, and road-salt degradation. Inside, an advanced, high-flow \u003cstrong\u003eceramic honeycomb substrate\u003c\/strong\u003e provides an optimized surface-area-to-volume ratio loaded with an efficient catalytic washcoat to maximize gas conversion without choking exhaust scavenge. Thick, CNC-machined flanges mate cleanly with OEM intermediate pipes, utilizing precision-stamped crush seals to prevent pre- and post-catalyst exhaust leaks that skew downstream oxygen sensor feedback.\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;\"\u003e2007-2009 Mazda CX-7\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;\"\u003e2.3L DISI Turbo (MZR L3-VDT) \/ ER Chassis\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;\"\u003e244 hp \/ 258 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 Mazda CX-7 Grand Touring, Sport, Touring (2.3L L4 Turbo Gas)\u003c\/li\u003e\n  \u003cli\u003e2008 Mazda CX-7 Grand Touring, Sport, Touring (2.3L L4 Turbo Gas)\u003c\/li\u003e\n  \u003cli\u003e2009 Mazda CX-7 Grand Touring, Sport, Touring (2.3L L4 Turbo 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 ER CX-7?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2009 Mazda CX-7 equipped with the \u003cstrong\u003eMZR L3-VDT\u003c\/strong\u003e 2.3L turbocharged engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this direct replacement clear check engine codes associated with rear catalyst efficiency?\u003c\/strong\u003e\u003cbr\u003e Yes, providing upstream air-fuel ratios and sensors are operating within specification, this unit restores OEM conversion levels to clear cat-related fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Mazda Tuner Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the aggressive boost dynamics of Mazda's direct-injected turbo platforms, this rear assembly delivers true OEM-level fitment and structural integrity to maintain precise exhaust backpressure and keep boost response sharp.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501717590264,"sku":"DS-EKIQDNK7V","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-mazda-cx-7-2007-2009-2-3l-rear-1.jpg?v=1789330719","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-mazda-cx-7-2007-2009-2-3l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}