Exhaust Header for 1999-2006 GMC/Chevy GMT800 V8 Engine Stainless Manifold

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FlasharkSKU: FLES08203
5 reviews

· Enhance Sound
· Improves Throttle Response
· Add Up to 8-20 Horsepower
· High-Temperature Inoxidizability
· 0.5 MPG Gas Mileage Improvement

Sale price$335.00 Regular price$399.00

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FLASHARK Exhaust Header for 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 GMC/Chevy GMT800 V8 Engine 2WD


  • 2001-2004 GMC Yukon(except 2003 GMC Yukon SLT Sport Utility 4-Door 5.3L)
  • 2000-2004 GMC Yukon XL 1500
  • 1999-2005 GMC Sierra
  • 2002-2005 Chevy Avalanche 1500
  • 1999-2005 Chevy Silverado 1500
  • 2000-2004 Chevy Suburban 1500
  • 2000-2004 Chevy Tahoe


    Brand Name: FLASHARK
    Certificate: ISO9001:2000
    Application: Automobile Exhaust Header
    Material: 201 Stainless Steel
    Surface: Mirror Polish
    Model: EH28136
    Color: Same as the pictures show

    Air Intake Details:

    Outlet Size: 3.00"
    Filter: Inner Diameter: 4.00", Overall Height: 10.50"
    Aluminum Charge Pipe: 3.75" Inlet / Outlet
    High Heat Tolerance Silicone Hoses: 3.75" Inlet / Outlet

    Header Exhaust Details:

    Inlet/ Outlet: 1.875" (8 * Manifold Ports)/ 2.5" (Outer Diameter)
    Main Piping Diameter: 2.5"


      1. Getting more air into your engine and more exhaust out is the key to a performance motor. That's where exhaust headers are significant as the first revenue of an exhaust system. Exhaust performance headers manipulate the airflow with the performance-robbing exhaust manifold that comes with your car.
      2. Headers provide each cylinder with its mini exhaust pipe, which means exhaust headers prevent interference among cylinders; thus, the back pressure that occurs in common exhaust manifolds. When cylinders don't have to fight with each other to expel their exhaust, they can put more power through the wheels, pushing the vehicle. Combining with a high-performance cold air intake, and a cat-back exhaust system, a header system removes all restrictions of your engine, then, it can perform at its full potential.

      Sharing from @bluecollarhotrods9781

      Sharing from @StationroadRatrods


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      Shipping Time: Estimated in 3-5 Working Days 


      Duration of Warranty: Permanent Warranty

      Exhaust header VS manifold, which is the better choice? 

      The structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold.
      Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.


      Customer Reviews

      Based on 5 reviews
      Kody b. (Glencoe, US)

      There was some things that could of had a lil more planning done but overall the sound quality and the design for 02 sensor placing was amazing I’m glad I went with this option inside of any other aftermarket option. I dunno if it was listed or not but these headers did have a spot for emission which was shocking when thay came. On the right side (passenger) it touches the frame so you would have to ident it a lil bit so It won’t and in one of the 02 sensors spots I couldn’t get the plug in without having to modify it, they like forgot to cut it out big enough or something but the o2 sensor still screwed in just like a metal plate inside of it or something. But overall good product I don’t have any other complaints about it!

      Thank you for your comment!

      Kellon O. (Denver, US)

      Does this have the spot to put o2 sensors in?

      Hi, this product has an oxygen sensor!

      Angel P. (San Jose, US)
      Decent headers!

      Direct bolt on put them on with no issues spark plug wires are extremely close to the driver side headers. Make sure you buy spark plug wires heat shields so they don’t melt. These were installed on a 2001 Silverado single cab 4x4 definitely recommend!

      Hi, thanks for the review, great car! Looking forward to your from your next purchase, you can contact the customer service email for a separate discount!

      Darla S. (Philadelphia, US)

      Very satisfied with quality of product and service.

      Hi, thanks for your comment and we look forward to receiving your feedback pictures!

      Eron C. (Phoenix, US)
      Awesome header’s straight bolt on!!

      Easy installation had ti clean up exhaust donut… other than that perfect… even with that they are great sound awesome!!!

      Hi, thanks for the pictures! Very nice! Looking forward to your next purchase!

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