Exhaust Header for 1999-2005 Chevy Silverado/Avalanche/Suburban/Tahoe GMC Sierra/Yukon GMT800 4.8L 5.3L 6.0L V8 Engine

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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

Price:
Sale price$335.00 Regular price$399.00

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Stock:
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Our products are designed based on OEM specifications and are suitable for unmodified vehicles. If your vehicle has been modified, compatibility or installation cannot be guaranteed. We recommend confirming your vehicle's setup or consulting our customer service team before purchase. We're here to help!

Description

Upgrade your vehicle’s performance with the FLASHARK Exhaust Header, designed for the 1999-2005 Chevy Silverado, Chevy Avalanche, Chevy Suburban, Chevy Tahoe, GMC Sierra, and GMC Yukon GMT800 models. This exhaust header is specifically built for 4.8L, 5.3L, and 6.0L V8 engines, helping to improve airflow and reduce back pressure. By giving each cylinder its own exhaust pipe, it prevents exhaust interference, boosting horsepower and engine efficiency. The durable 201 stainless steel construction with a mirror-polish finish ensures both performance and style. Ideal for anyone looking to unlock the full potential of their V8 engine, whether on the street or the track.

Fitment:

  • 1999-2005 Chevy Silverado 1500 4.8L, 5.3L, 6.0L V8
  • 2002-2005 Chevy Avalanche 1500 5.3L, 6.0L V8
  • 2000-2004 Chevy Suburban 1500 4.8L, 5.3L, 6.0L V8
  • 2000-2004 Chevy Tahoe 4.8L, 5.3L, 6.0L V8
  • 2000-2004 GMC Yukon XL 1500 4.8L, 5.3L, 6.0L V8
  • 1999-2005 GMC Sierra 4.8L, 5.3L, 6.0L V8
  • 2001-2004 GMC Yukon 4.8L, 5.3L, 6.0L V8 (except 2003 GMC Yukon SLT Sport Utility 4-Door 5.3L)

    Specifications:

    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"

      Feature:

      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.

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      Delivery:  

      Free Shipping  
      Shipping Time: Estimated in 3-5 Working Days 

      Warranty:  

      Duration of Warranty: Permanent Warranty

      Exhaust header VS manifold, which is the better choice? 

      When comparing exhaust headers and manifolds, the key differences lie in material, size, and performance. Exhaust headers, made from lighter, thinner steel, are longer and more efficient than the thick iron exhaust manifolds typically found in stock engines. Manifolds tend to create back pressure, which can reduce engine performance. However, exhaust headers are designed to give each cylinder its own exhaust pipe, allowing gases to exit freely without causing back pressure. This results in improved horsepower and better engine efficiency.

      For vehicles like the 1999-2005 Chevy Silverado, Avalanche, Suburban, Tahoe, and GMC Sierra, Yukon, upgrading from stock manifolds to performance exhaust headers is a significant improvement. With the FLASHARK Exhaust Header, you’ll experience a boost in engine performance and a more aggressive exhaust note. Whether you’re cruising on the road or pushing your vehicle to the limit, this upgrade unlocks the full potential of your 4.8L, 5.3L, and 6.0L V8 engines. The direct bolt-on design makes installation hassle-free—no modifications needed. 

      FAQ

      Q: Will these fit a 4-wheel drive (4WD) vehicle?

      A: Yes, these exhaust headers are compatible with both 2WD and 4WD vehicles from the 1999-2006 GMC/Chevy GMT800 series with a V8 engine.

      Q: Will these fit my 2001 Chevrolet Silverado 1500 4x4?

      A: Yes, these exhaust headers will fit a 2005 Chevrolet Silverado 1500 4x4, as it is part of the GMT800 platform with a V8 engine.

      Q: Are these catalytic converters included with the headers?

      A: No, these exhaust headers are catless and do not include catalytic converters.

      Q: What is the exhaust pipe diameter for this header set?

      A: The inlet/outlet diameter is 1.875" for the manifold ports and 2.5" for the outer diameter. The main piping diameter is 2.5".

      Q: Will these exhaust headers pass emissions in California?

      A: These headers are designed for off-road use only and may not pass California emissions regulations due to the absence of catalytic converters.

      Customer Reviews

      Based on 5 reviews
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      K
      Kellon O. (Denver, US)
      Kellon

      Does this have the spot to put o2 sensors in?

      Hi, this product has an oxygen sensor!

      A
      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!

      D
      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!

      E
      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!

      K
      Kody B. (Glencoe, US)
      Awesome!

      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!

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