{"product_id":"muffler-exhaust-system-for-toyota-tundra-2007-2011-4-0l-4-7l-146-wheelbase","title":"Muffler Exhaust System for Toyota Tundra (2007-2011) 4.0L 4.7L 146\" Wheelbase","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Muffler Exhaust System for 2007-2011 Toyota Tundra (XK50)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Muffler Exhaust System replaces the corroded or blown factory exhaust on 2007-2011 Toyota Tundra trucks to eliminate exhaust leaks, restore OEM decibel levels, and maintain proper backpressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tundra Exhaust Corrosion and Baffle Breakdown\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust tubing and silencers on the \u003cstrong\u003eXK50\u003c\/strong\u003e platform suffer severe degradation from thermal cycling and prolonged exposure to road salts and condensation. Over time, internal baffles fail and cause irritating cabin drone, rattling, and disrupted exhaust scavenging. More critically, rusted-out seams, broken hanger welds, and compromised intermediate joints leak carbon monoxide dangerously close to the cab while degrading overall engine efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct bolt-in replacement for worn factory assemblies, this system is fabricated from durable \u003cstrong\u003e409 stainless steel\u003c\/strong\u003e for superior heat cycling tolerance and long-term rust resistance. Mandrel-bent piping ensures continuous cross-sectional diameter without flow-choking crush bends, maintaining optimal exhaust gas velocity for the \u003cstrong\u003e1GR-FE\u003c\/strong\u003e and \u003cstrong\u003e2UZ-FE\u003c\/strong\u003e platforms. The chambered muffler is tuned specifically to restore factory-level acoustic attenuation without restricting scavenging. Precision-located flange connections and factory-matched hanger points ensure a secure install matching OEM reference \u003cstrong\u003eDAT000000609\u003c\/strong\u003e without any cutting or welding.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Muffler and pipe assembly\u003c\/li\u003e\n  \u003cli\u003eIntermediate pipe\u003c\/li\u003e\n  \u003cli\u003eTailpipe\u003c\/li\u003e\n  \u003cli\u003eExhaust clamps\u003c\/li\u003e\n  \u003cli\u003eFlange gaskets\u003c\/li\u003e\n  \u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e2007-2011 Toyota Tundra (146\" Wheelbase)\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;\"\u003e1GR-FE (4.0L), 2UZ-FE (4.7L) \/ XK50\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;\"\u003e236–276 hp \/ 266–313 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;\"\u003eDAT000000609\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 Toyota Tundra 4.0L V6 (146-inch Wheelbase)\u003c\/li\u003e\n  \u003cli\u003e2007-2011 Toyota Tundra 4.7L V8 (146-inch Wheelbase)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the XK50 Tundra?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2007-2011 Toyota Tundra equipped with the \u003cstrong\u003e1GR-FE\u003c\/strong\u003e 4.0L or \u003cstrong\u003e2UZ-FE\u003c\/strong\u003e 4.7L engine. \u003cstrong\u003eThis unit will NOT fit 126-inch or 164-inch wheelbase configurations, nor will it fit models equipped with the 5.7L V8 engine.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs welding or pipe expansion required during installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this assembly is engineered to bolt directly to factory hanger locations using the included hardware and clamps.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Truck Caliber\u003c\/h3\u003e\n\u003cp\u003eSustained towing and heavy bed loads generate intense exhaust gas temperatures on the \u003cstrong\u003eXK50\u003c\/strong\u003e chassis, making commercial-grade 409 stainless steel vital for long-term structural integrity and steady low-end torque retention.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67896399855864,"sku":"DS-E1EZY37H5","price":321.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/muffler-exhaust-system-for-toyota-tundra-2007-2011-4-0l-4-7l-146-wheelbase-1.jpg?v=1793299507","url":"https:\/\/performancechiptuning.com\/de\/products\/muffler-exhaust-system-for-toyota-tundra-2007-2011-4-0l-4-7l-146-wheelbase","provider":"Performance Chip Tuning","version":"1.0","type":"link"}