{"product_id":"catalytic-converter-for-nissan-sentra-2000-2002-1-8l-front","title":"Catalytic Converter for Nissan Sentra (2000-2002) 1.8L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Exhaust Manifold Catalytic Converter for 2000-2002 Nissan Sentra (B15)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The front catalytic converter replaces the compromised factory exhaust manifold converter on the 2000-2002 Nissan Sentra to clear P0420 diagnostic trouble codes, restore factory exhaust flow velocity, and ensure proper emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Sentra Catalyst Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe factory integrated manifold catalytic converter on the \u003cstrong\u003eB15\u003c\/strong\u003e platform paired with the \u003cstrong\u003eQG18DE\u003c\/strong\u003e engine is notoriously susceptible to thermal fatigue and substrate degradation. Over continuous thermal cycling, the factory ceramic core crumbles, leading to exhaust restrictions, reduced scavenging, and unmetered backpressure spikes. Left unaddressed, deteriorating core material risks being drawn back into the combustion chambers through valve overlap during deceleration, resulting in catastrophic cylinder wall scoring and severe oil consumption.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed with a heavy-gauge aluminized steel outer casing and a high-flow ceramic honeycomb substrate, this direct replacement manifold converter resolves internal degradation issues permanently. The precision-welded assembly incorporates thick, OE-spec laser-cut mounting flanges to prevent thermal distortion and exhaust leaks at the cylinder head. Designed to replicate factory dimensional geometry, it integrates factory-located O2 sensor bungs and matches OEM port runners to stabilize backpressure, protect engine longevity, and extinguish catalyst efficiency check engine lights without ECU tuning.\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;\"\u003e2000-2002 Nissan Sentra\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\u003eQG18DE\u003c\/strong\u003e 1.8L \/ \u003cstrong\u003eB15\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;\"\u003e126 hp \/ 129 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\u003e40412\u003c\/strong\u003e\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\u003e2000 Nissan Sentra GXE \/ XE (1.8L L4 - \u003cstrong\u003eQG18DE\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2001 Nissan Sentra GXE \/ XE (1.8L L4 - \u003cstrong\u003eQG18DE\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2002 Nissan Sentra GXE \/ XE (1.8L L4 - \u003cstrong\u003eQG18DE\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003eNote: Fits Front manifold position only. Does not fit 2.0L (SR20DE) or 2.5L (QR25DE) engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the B15 Sentra?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2000-2002 Nissan Sentra equipped with the \u003cstrong\u003eQG18DE\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this direct-fit converter resolve a P0420 diagnostic trouble code?\u003c\/h4\u003e\n\u003cp\u003eYes, replacing a deteriorated factory unit with this fresh ceramic substrate restores stoichiometric conversion efficiency and clears catalyst-related CEL faults.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to restore original Japanese domestic performance characteristics, this manifold converter delivers clean emissions, factory-correct exhaust harmonics, and dependable engine protection over the long haul.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537766711544,"sku":"DS-EKNNVM6H3","price":135.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-nissan-sentra-2000-2002-1-8l-front-1.jpg?v=1790617329","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-nissan-sentra-2000-2002-1-8l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}