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Fits: 02-06 GMC Sierra V8, 02-06 GMC Yukon V8, 02-08 GMC Envoy V8, 03-09 GMC Savana V8, 04-09 GMC Canyon V8, 07-09 GMC Arcadia V8, 07-09 GMC Sierra V8, 07-0 ...

PART# 814123

Finish: Stainless Steel
Price: $662.32
Qty: Pair

Free Shipping! *Continental U.S. only.

Fits: 06-09 Envoy, 5.3L, 6.0L, 06-09 Trailblazer, Trailblazer SS, 5.3L, 6.0L

PART# 72C2276

Finish: Armor Coated
Tube Grouping: 4-1
Qty: Pair

Fits: 06-09 Envoy, 5.3L, 6.0L, 06-09 Trailblazer, Trailblazer SS, 5.3L, 6.0L

PART# 70-2276

Finish: Armor Coated
Tube Grouping: 4-1
Qty: Pair

Fits: 2002 GM 6.0L Pick Up / SUV 2/4WD


Finish: Ceramic Coated
Qty: Pair

Fits: 2002-12 GM 4.8L-6.2L Pick Up / SUV 2/4WD


Finish: Ceramic Coated
Qty: Pair

Fits: 2007-09 GM 4.8L-6.2L Pick Up / SUV 2/4WD

PART# THY-310Y-1-C

Finish: Ceramic Coated
Qty: Pair


Not able to find what you are looking for?

auto header panel for GMC Envoy

New Header Panel Nose GMC Envoy 2008 2007 2006 2005 2004 2003 GM1221126 15195745

OBX Header System 07-08 GMC 1500 Envoy Yukon Sierra 6.2

15195745 GM1221126 Header Panel New GMC Envoy 2008 2007 2006 2005 2004 2003

GMC ENVOY 02-09 HEADER PANEL, Thermo 902

At Andy's Auto Sport, we have a huge variety of GMC Envoy headers to ensure that you have every header option available to you. We go out of our way to carry every major line of GMC Envoy headers, so that whether you are looking for long tube GMC Envoy headers or custom exhaust headers or anything in between, we've got it for you. Andy's Auto Sport is the ultimate shopping destination for your GMC Envoy header needs!

Header is the term used to describe the aftermarket product that replaces the factory exhaust manifold. Headers are normally designed to be less restrictive than the factory exhaust manifolds that they replace, thereby generating more horsepower.

Headers are considered part of the exhaust system of the vehicle. Right after the incoming air and fuel combust, the result exhaust is push through the headers and out the exhaust. The headers are often connected to the catalytic converter, which is connected to the muffler and exhaust tip, so the headers are the "front" of the exhaust system.

Some of the popular brands of headers that you'll find are: DC Sports, Hedman, Hooker, Doug Thorley, Pacesetter, and Flowtech, among others.

We get asked a lot if you can buy headers but still leave the stock catalytic converter in place. The answer is yes in almost every case, as the headers are still designed with flanges in most cases that will mount right up to the existing factory parts.
Q: What does a header do? Why buy a header?
A: An exhaust header is a performance product that replaces your factory exhaust manifold and improves an engine's performance by allowing air to flow more freely. The easier an engine breathes the more power it produces. Headers generally use piping with a wider diameter than factory tubing, which allows more air to pass through the exhaust system than factory. A header is one of the easiest bolt-on modifications you can make to increase horsepower, making an effective use of money if your goal is to quickly gain horsepower.

Q: How do you install a header?
A: A header is a direct bolt-on. Simply remove the factory OEM exhaust manifold and the aftermarket header is put in its place. The header is to be attached the head of your vehicle. Remove all the bolts that hold the flanges in place and detach the factory manifold. The down pipe or exhaust pipe should be removed as well and then reattached once the header flanges are bolted back onto the head.

Q: For which vehicles is it necessary to buy a pair of headers? On your website are headers automatically sold in pairs for these vehicles?
A: When purchasing exhaust headers for a V-6 or V-8 engine, the header package is complete with two headers. If your vehicle is a 4-cylinder, there only a single header that is used.

Q: What are the different tubing options for headers and what is the difference between them?
A: There are two major designs for headers: the 4-2-1 design and the 4-1 design. In many cases 4-1 headers are designed for racing applications where the vehicle is being driven at or near redline. The 4-1 design maximizes top end power, whereas the 4-2-1 evenly distributes it throughout the power band. Either way, you're going to be getting more horsepower from a header.

Q: How much does the material used to make the header matter?
A: There are two main materials that headers are manufactured out of: ceramic and stainless steel. Ceramic headers are less expensive, but are prone to cracking if they get to be extremely hot. Stainless steel headers are more expensive but are more durable and generally more stylish. Stainless steel headers can take any kind of heat you throw at it and not prone to cracking.

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