{"product_id":"long-tube-headers-for-ford-f150-1999-2004-5-4l","title":"Long Tube Headers for Ford F150 (1999-2004) 5.4L","description":"\u003ch2\u003eHigh-Flow Stainless Steel Long Tube Headers for 1999-2004 Ford F-150\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Long Tube Headers replace the restrictive factory cast-iron exhaust manifolds on the 1999-2004 Ford F-150 to reduce backpressure, improve cylinder scavenging, and increase horsepower and torque across the entire rev range.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford F-150 Manifold Restriction\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust manifolds on the \u003cstrong\u003ePN-96\u003c\/strong\u003e chassis are engineered around assembly-line speed and tight packaging rather than thermal efficiency. Cast from heavy iron, the OEM log-style manifolds choke exhaust gas velocity and induce severe thermal stress. Over thousands of heat cycles, these factory units commonly warp, snap manifold studs, and develop audible exhaust leaks at the cylinder head. Furthermore, unequal runner lengths cause backpressure reversion, holding trapped heat inside the combustion chambers of the \u003cstrong\u003eTriton 5.4L 2V\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis header system utilizes smooth, mandrel-bent stainless steel primary tubes engineered to equalize exhaust pulses and maximize cylinder evacuation. Constructed with precision TIG-welded joints and thick, warp-resistant mounting flanges, these headers eliminate common flange distortion and blowout risks under heavy towing conditions. The tuned collectors facilitate a smooth transition into your mid-pipe, reducing pumping losses and dropping exhaust gas temperatures (EGTs). Custom-formed bends ensure direct drop-in clearance around the steering shaft, frame rails, and front differential on both two-wheel-drive and four-wheel-drive models.\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; margin-bottom: 20px;\"\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;\"\u003e1999-2004 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;\"\u003e\n\u003cstrong\u003eTriton 5.4L SOHC V8\u003c\/strong\u003e \/ \u003cstrong\u003ePN-96\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;\"\u003e260 hp \/ 350 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\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1999–2003 Ford F-150 (XL, XLT, Lariat, King Ranch) 5.4L Modular V8\u003c\/li\u003e\n  \u003cli\u003e2004 Ford F-150 Heritage 5.4L Modular V8\u003c\/li\u003e\n  \u003cli\u003eCompatible with both Rear-Wheel Drive (RWD) and Four-Wheel Drive (4WD) drivetrains\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the PN-96 F-150?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1999-2004 Ford F-150 equipped with the \u003cstrong\u003eTriton 5.4L 2V\u003c\/strong\u003e engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs an ECU tune required after installing long tube headers?\u003c\/strong\u003e\u003cbr\u003e While the truck can run on factory programming, a custom PCM tune is strongly recommended to optimize air-fuel ratios and prevent rear O2 sensor codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Workhorse Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the continuous demands of towing and heavy payload hauling, these stainless steel headers provide the structural durability and heat tolerance required to keep your Ford truck working reliably under extreme exhaust loads.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50534043189496,"sku":"DS-EXC4726VW","price":309.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/long-tube-headers-for-ford-f150-1999-2004-5-4l-1.webp?v=1789666757","url":"https:\/\/performancechiptuning.com\/fr\/products\/long-tube-headers-for-ford-f150-1999-2004-5-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}