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

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

Fitment:

• 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

Specifications:

Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: 201 Stainless Steel
Surface: Mirror Polish
Model: EH28136
Warranty: 180 days
Color: Same as the pictures show
Fitment Type: Performance/Custom
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
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.

Sharing from @bluecollarhotrods9781

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.