{"product_id":"catback-exhaust-for-toyota-tundra-2000-2006-4-7l","title":"Catback Exhaust for Toyota Tundra (2000-2006) 4.7L Engine","description":"\u003ch2\u003eHigh-Flow Catback Exhaust for 2000-2006 Toyota Tundra (2UZ-FE\/XK40)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This catback system replaces the restrictive factory exhaust piping and muffler with 3-inch mandrel-bent stainless steel to reduce backpressure and improve exhaust gas scavenging.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Tundra Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eThe OEM exhaust system on the 4.7L 2UZ-FE Tundra is engineered primarily for noise suppression rather than volumetric efficiency. The factory unit utilizes small-diameter, press-bent piping that creates internal turbulence and significant backpressure at the bends. Furthermore, the stock chambered muffler relies on restrictive baffles that stifle the V8's ability to evacuate combustion gases quickly. This restriction results in lost low-end torque and a 'choked' power band during towing or high-RPM acceleration. Over time, the mild steel construction of the factory system is highly susceptible to rust and structural fatigue at the weld points.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis performance catback system is constructed from high-grade T-409 stainless steel, utilizing computer-controlled mandrel bends to maintain a consistent 3-inch internal diameter throughout the flow path. By eliminating the bottlenecks found in press-bent tubing, this system ensures laminar flow and reduces parasitic drag on the engine. The integration of a high-flow louvered core muffler provides an aggressive, deep tone while maintaining smooth gas velocity to prevent exhaust resonance. TIG-welded CNC machined flanges ensure a leak-proof seal under high thermal stress, while the hardware and gaskets included allow for a direct bolt-on installation. Dyno testing indicates immediate gains of 15 to 25 horsepower and improved throttle response.\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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2000-2006 Toyota Tundra\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4.7L 2UZ-FE V8 \/ XK30, XK40\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e245-282 hp \/ 315-325 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2006 Toyota Tundra (All Trims with 4.7L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Toyota Truck Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for the demands of the first-generation Tundra platform, this exhaust system emphasizes durability and sustained torque. Whether used for heavy towing or off-road excursions, the T-409 stainless construction provides the thermal management and corrosion resistance necessary for long-term reliability in harsh environments.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":48005075468536,"sku":"DS-E62GW567X","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catback-exhaust-for-toyota-tundra-2000-2006-4-7l-1.webp?v=1771603654","url":"https:\/\/performancechiptuning.com\/products\/catback-exhaust-for-toyota-tundra-2000-2006-4-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}