{"product_id":"catalytic-converter-for-lexus-gs350-2007-2015-3-5l-awd-bank-1-bank-2","title":"Catalytic Converter for Lexus GS350 (2007-2015) 3.5L AWD Bank 1 \u0026 Bank 2","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Manifold Catalytic Converter Set for 2007-2015 Lexus GS350 (S190 \/ L10)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The catalytic converter set replaces worn or clogged factory exhaust manifold converters on the 2007-2015 Lexus GS350 AWD to eliminate P0420\/P0430 diagnostic trouble codes and restore exhaust scavenging efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus GS350 Washcoat Degradation \u0026amp; Thermal Fatigue\u003c\/h3\u003e\n\u003cp\u003eWith prolonged heat cycling and high mileage, factory manifold converters on the \u003cstrong\u003e2GR-FSE\u003c\/strong\u003e suffer washcoat sintering and ceramic substrate attrition. Oil blow-by and cold-start thermal shock erode the internal platinum-group precious metal catalyst layer, dropping oxygen storage capacity below OEM threshold limits. This triggers persistent Check Engine Lights (CEL) for catalyst efficiency below threshold (Bank 1 \/ Bank 2), restricts exhaust scavenging along the tight AWD front subframe clearance, and increases backpressure against the cylinder head exhaust ports.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered explicitly for all-wheel-drive clearances, this direct-fit Bank 1 and Bank 2 manifold assembly is fabricated from corrosion-resistant 409 stainless steel tubing to resist road-salt exposure and thermal oxidation. Dense, flow-optimized ceramic honeycombs loaded with catalytic washcoat restore precise stoichiometric gas conversion without compromising exhaust velocity. Heavy-gauge laser-cut flanges prevent thermal warping at the cylinder head interface, while factory-located O2 sensor bungs allow plug-and-play downstream sensor transfer without wire harness tension or secondary bung modification.\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: solid font-size: min-width:\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;\"\u003e2007-2015 Lexus GS350 AWD\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\u003e2GR-FSE\u003c\/strong\u003e \/ \u003cstrong\u003eS190 \u0026amp; L10\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;\"\u003e306 hp \/ 277 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\n\u003cstrong\u003e16633, 16635\u003c\/strong\u003e (MPN: QS322208QR)\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\u003e2007-2011 Lexus GS350 3.5L V6 AWD (Chassis: GRS196)\u003c\/li\u003e\n  \u003cli\u003e2013-2015 Lexus GS350 3.5L V6 AWD (Chassis: GRL15)\u003c\/li\u003e\n  \u003cli\u003eFits AWD manifold bank 1 (right) and bank 2 (left) applications only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the S190 \/ L10 GS350?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2015 Lexus GS350 equipped with the \u003cstrong\u003e2GR-FSE\u003c\/strong\u003e engine and all-wheel-drive configuration.\u003c\/p\u003e\n\n\u003ch4\u003eAre these converters legal for road use in California or CARB-compliant states?\u003c\/h4\u003e\n\u003cp\u003eNo, this unit is 46-state EPA compliant and cannot be sold, shipped, or registered in California, New York, Colorado, or Maine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus Precision Standard\u003c\/h3\u003e\n\u003cp\u003ePreserve factory Japanese domestic refinement and exhaust acoustic tuning without harsh cabin drone or restrictive backpressure chokes, keeping your AWD luxury sport sedan running cleanly and reliably.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67543948099832,"sku":"DS-E51K6GEY7","price":177.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-lexus-gs350-2007-2015-3-5l-awd-bank-1-bank-2-1.jpg?v=1790696313","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-lexus-gs350-2007-2015-3-5l-awd-bank-1-bank-2","provider":"Performance Chip Tuning","version":"1.0","type":"link"}