Our 4-1 Long Tube off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 5.4L(330ci) engine. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound. 1 X Set of Header Exhaust System. Hardware, such as Exhaust Clamps, as Shown in the Picture Above. High Performance Stainless Steel Header Exhaust. Made of High Quality T304 Stainless Steel Material. Design for High Air Flow Rate. Inlet Size:1.75 Ports. Outlet Size: 2.50. Piping Diameter: 4 X 1.75″ Manifold Pipings; into 2 X 3.00″ and 2.25 Exhaust Pipes. O2 Sensor Bungs Insertion and Metal Gasket Included. TIG Welded CNC Machine Flange. Increase High Flow Air, Instantly Gain at least 10 -15 Hp. Professional Installation is Highly Recommended (No Instruction Included). 04-08 Ford F-150 5.4L V8 2WD/RWD. Professional Installation is Highly Recommended. Installation Instruction is NOT Included. WE HIGHLY RECOMMEND PROFESSIONAL INSTALLATION! Video will open in a new window. DNA Motoring came about more than a decade ago with only one thing in mind and that was providing performance parts solutions to the car enthusiast. Being car guys ourselves, we understand first hand on what the community demands and what it thrives on. Throughout the years the automotive scene has been evolving and so have us. We have been swift in adapting to the industry changes and catering our new products to fit the current needs. DNA Motoring has been the umbrella corporation for other brands and web presences so that we can more specifically market to the proper customer demographics and hopefully reach out to as many individuals and groups as possible. We begin with our factories overseas, where we do heavy research and development in testing car applications and fitments for our products. In addition, we also do rigorous testing on the strength, durability, as well as longevity of the material in order to make sure when the product arrives at the consumers end that it’s ready to go without worries. During stressful conditions such as climate and road conditions, there is a great strain that is put on the vehicle and we keep this in mind while we design and test our products to ensure maximum performance as well as safety. The last thing we want to hear is having our products fail at its most crucial needed moment so we strive to do all that we can to minimize such events from even occurring. Trust in our commitment in custom manufacturing each and every one of our parts as we continue in providing quality made products backed by top notch service. Where DNA Motoring shine is we operate and manage several factories in which we’re able to govern and oversee ourselves in order to keep costs down and ultimately reducing end consumer prices dramatically. We like to stay competitive in our pricing and constantly adjust to the ever-shifting market values. DNA Motoring is here to stay and will continue to serve the scene for as long as time allows in order to bettering ourselves in our knowledge and respect for the automotive community. Some of the packages cannot be delivered to a PO Box. Package will be held until a valid physical address is provided. Why Shop With Us? Sign up to our Newsletter. Get all the latest News, Updates and Special Offers about our store. The item “STAINLESS STEEL HEADER FOR 04-08 FORD F150/LOBO 5.4L V8 PICKUP EXHAUST/MANIFOLD” is in sale since Wednesday, April 16, 2014. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers”. The seller is “dnamotoring” and is located in Texas, TX. This item can be shipped worldwide.

• Brand: DNA Motoring
• Manufacturer Part Number: DNA-HDSF1500454LLONG
• Material: T-304 Full Stainless Steel
• Surface Finish: Chrome Polished Stainless Steel
• Fitment Type: Performance/Custom
• Restricted States: California
• Interchange Part Number: DNA-HDSF1500454LLONG
• Other Part Number: DNA-HDSF1500454LLONG
• Placement on Vehicle: Front
• California Prop 65 Warning: This product contains chemicals known to the State.
• Color: Metallic