{"product_id":"catalytic-converter-for-honda-accord-2003-2007-3-0l-rear","title":"Catalytic Converter for Honda Accord (2003-2007) 3.0L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2003-2007 Honda Accord\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The rear catalytic converter replaces the compromised underfloor emissions unit on the 2003-2007 Accord to eliminate catalyst efficiency trouble codes and restore proper exhaust scavenging across the powerband.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Honda Accord Exhaust Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory underfloor converters on the 7th generation Accord suffer thermal breakdown after repeated thermal cycling and prolonged engine run times. Over years of operation, oil vapor blow-by and rich-mixture conditions degrade the factory ceramic washcoat on the \u003cstrong\u003eJ30A4\u003c\/strong\u003e and \u003cstrong\u003eJ30A5\u003c\/strong\u003e engines. This leads to matrix crumbling, internal clogging, and subsequent exhaust backpressure spikes that stifle top-end VTEC flow while triggering persistent \u003cstrong\u003eP0420\u003c\/strong\u003e diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on solution for the underbody exhaust channel, this rear assembly utilizes a corrosion-resistant stainless steel shell mated to a durable, flow-optimized ceramic substrate. Laser-cut, thick-gauge connecting flanges prevent exhaust leaks under vibration, maintaining structural integrity across severe thermal expansion cycles. Precision-welded mounting brackets align directly to the factory isolated hanger pins for standard OE-location fitment without cutting or custom fabrication, matching OE interchange \u003cstrong\u003e16351\u003c\/strong\u003e specs.\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;\"\u003e2003-2007 Honda Accord\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\u003eJ30A4 \/ J30A5\u003c\/strong\u003e \/ \u003cstrong\u003eCM6 \/ CM8\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;\"\u003e240-244 hp \/ 211-212 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\u003e16351\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\u003e2003-2007 Honda Accord EX 3.0L V6 (Sedan \u0026amp; Coupe)\u003c\/li\u003e\n  \u003cli\u003e2003-2007 Honda Accord LX 3.0L V6 (Sedan \u0026amp; Coupe)\u003c\/li\u003e\n  \u003cli\u003e2005 Honda Accord SE 3.0L V6\u003c\/li\u003e\n  \u003cli\u003e2007 Honda Accord Special Edition 3.0L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the CM6\/CM8 Accord?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2003-2007 Honda Accord equipped with the \u003cstrong\u003eJ30A4\u003c\/strong\u003e or \u003cstrong\u003eJ30A5\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this converter resolve an active P0420 code?\u003c\/strong\u003e\u003cbr\u003e Yes, its fresh precious metal washcoat restores internal chemical conversion efficiency to OEM thresholds, allowing downstream sensors to register correct emissions parameters.\u003c\/p\u003e\n\n\u003ch3\u003eThe Honda Standard\u003c\/h3\u003e\n\u003cp\u003eMaintain the clean revving signature and linear throttle response Honda built into the V6 platform without raspy acoustic drone or restricted exhaust flow.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501101355256,"sku":"DS-EWT00EEML","price":137.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-honda-accord-2003-2007-3-0l-rear-1.jpg?v=1789326036","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-honda-accord-2003-2007-3-0l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}