{"product_id":"catalytic-converter-for-infiniti-q50-2014-2015-3-7l-left-right","title":"Catalytic Converter for Infiniti Q50 (2014-2015) 3.7L Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Replacement Catalytic Converter Pair for 2014-2015 Infiniti Q50 (V37)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit Left \u0026amp; Right catalytic converter set replaces deteriorated factory catalytic units on the 2014-2015 Infiniti Q50 to eliminate P0420\/P0430 diagnostic trouble codes and restore factory exhaust velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Infiniti Q50 Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eThe high-revving \u003cstrong\u003eVQ37VHR\u003c\/strong\u003e engine operates with sustained exhaust gas temperatures (EGTs) exceeding 1,400°F under load. Over time, thermal cycling degrades the factory washcoat on the OEM ceramic cores, leading to catalyst poisoning, internal sintering, and core breakup. This breakdown creates severe exhaust backpressure, impedes scavenging efficiency across both cylinder banks, and triggers persistent catalyst efficiency check engine lights.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-in replacement for the \u003cstrong\u003eV37\u003c\/strong\u003e platform, this matched left and right converter assembly features heavy-gauge stainless steel outer shells that resist road-salt corrosion and thermal fatigue. Internally, high-flow ceramic monolith honeycombs provide balanced surface-area-to-flow ratios to maximize chemical reduction without choking the 3.7-liter V6. Precision-cut, thick-gauge flanges ensure a flat, leak-free seal to factory exhaust manifolds and mid-pipes, eliminating exhaust leaks that skew upstream and downstream oxygen sensor readings. Both converters match OEM dimensional geometry for plug-and-play installation with OE references \u003cstrong\u003e15H5485\u003c\/strong\u003e, \u003cstrong\u003e15H5484\u003c\/strong\u003e, \u003cstrong\u003e16197\u003c\/strong\u003e, and \u003cstrong\u003e16198\u003c\/strong\u003e.\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: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\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;\"\u003e2014-2015 Infiniti Q50 (3.7L V6)\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;\"\u003eVQ37VHR \/ V37\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;\"\u003e328 hp \/ 269 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;\"\u003e15H5485, 15H5484, 16197, 16198\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\u003e2014 Infiniti Q50 Base 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n  \u003cli\u003e2014 Infiniti Q50 Premium 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n  \u003cli\u003e2014 Infiniti Q50 Sport 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n  \u003cli\u003e2015 Infiniti Q50 Base 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n  \u003cli\u003e2015 Infiniti Q50 Premium 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n  \u003cli\u003e2015 Infiniti Q50 Sport 3.7L V6 (VQ37VHR)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the V37 Q50?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2014-2015 Infiniti Q50 equipped with the VQ37VHR engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill these converters resolve P0420 and P0430 DTC codes?\u003c\/h4\u003e\n\u003cp\u003eYes, replacing depleted OEM units with this functional catalyst pair restores emissions reduction efficiency to clear factory catalyst threshold fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Infiniti Benchmark\u003c\/h3\u003e\n\u003cp\u003ePreserve the distinct high-RPM exhaust acoustics and high-revving power delivery of your \u003cstrong\u003eVQ37VHR\u003c\/strong\u003e powertrain with direct-fit exhaust hardware built to withstand rigorous daily performance.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537673355512,"sku":"DS-EZO3GIP3Q","price":181.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-infiniti-q50-2014-2015-3-7l-left-right-1.jpg?v=1790613633","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-infiniti-q50-2014-2015-3-7l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}