{"product_id":"exhaust-kit-for-ford-f-150-2005-2006-4-6l-5-4l","title":"Exhaust Kit for Ford F-150 (2005-2006) 4.6L 5.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Flow Dual Muffler-Back Exhaust Kit for 2005-2006 Ford F-150 (P221)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Dual Muffler-Back Exhaust Kit replaces the restrictive factory single-exit exhaust on the 2005-2006 Ford F-150 to reduce parasitic backpressure and optimize exhaust gas velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-150 Exhaust Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust routing on the \u003cstrong\u003eP221\u003c\/strong\u003e platform relies on heavy internal muffler baffles and compression-bent tailpipe sections that choke cylinder scavenging. Under heavy payload or towing demands, this restrictive factory geometry traps heat within the exhaust tract and generates unwanted backpressure on both the \u003cstrong\u003e4.6L Modular 2V\u003c\/strong\u003e and \u003cstrong\u003e5.4L Triton 3V\u003c\/strong\u003e V8 engines, limiting thermal dissipation and throttling mid-range torque.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis system replaces the bottleneck using a Flowsound two-chamber muffler engineered with a single 3-inch inlet and dual 2.5-inch high-velocity outlets. All tailpipes are fabricated from 2.5-inch aluminized steel using mandrel-bending techniques that maintain constant internal diameter through every radius to prevent gas stagnation. Designed to exit parallel along the frame rails, the geometry maintains clear tolerance around the factory receiver hitch and OEM spare tire assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Flowsound 2-chamber muffler (single 3\" inlet, dual 2.5\" outlets)\u003c\/li\u003e\n  \u003cli\u003e2 aluminized mandrel-bent two-piece 2.5\" tail pipes (slip-together)\u003c\/li\u003e\n  \u003cli\u003e8 muffler clamps\u003c\/li\u003e\n  \u003cli\u003e1 larger exhaust clamp\u003c\/li\u003e\n  \u003cli\u003e4 rubber-insulated hangers\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;\"\u003e2005-2006 Ford F-150\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;\"\u003e4.6L Modular, 5.4L Triton \/ P221\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;\"\u003e4.6L: 231 hp \/ 293 lb-ft | 5.4L: 300 hp \/ 365 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;\"\u003eN\/A\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\u003e2005-2006 Ford F-150 4.6L V8 Gasoline (Factory Single-Inlet Muffler Only, All Wheelbases)\u003c\/li\u003e\n  \u003cli\u003e2005-2006 Ford F-150 5.4L V8 Gasoline \u0026amp; Flex-Fuel (Factory Single-Inlet Muffler Only, All Wheelbases)\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 P221 F-150?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2006 Ford F-150 equipped with the \u003cstrong\u003e4.6L Modular\u003c\/strong\u003e or \u003cstrong\u003e5.4L Triton\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes any models equipped with factory dual-inlet mufflers, components forward of the muffler, or vehicles with modified suspension and oversized spare tires that encroach on factory clearances.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs this a direct bolt-on installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this kit requires professional mechanical installation and may require custom pipe trimming or fabrication depending on specific wheelbase configurations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Tough Towing Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for hard-working half-ton trucks, this mandrel-bent aluminized system provides the structural durability and thermal resistance required under sustained heavy hauling and high-load towing.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67562638868728,"sku":"DS-EPGL7XC6S","price":229.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-kit-for-ford-f-150-2005-2006-4-6l-5-4l-1.jpg?v=1790988328","url":"https:\/\/performancechiptuning.com\/de\/products\/exhaust-kit-for-ford-f-150-2005-2006-4-6l-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}