2003 Hummer H2 Exhaust Manifold and Headers

Your 2003 Hummer H2 might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Exhaust Manifold and Headers you desperately need.

We currently carry 6 Exhaust Manifold and Headers to choose from for your 2003 Hummer H2, and our inventory prices range from as little as $114.99 up to $1,052.99.

On top of low prices, Advance Auto Parts offers 3 different trusted brands of Exhaust Manifold and Headers for the 2003 Hummer H2. We only sell parts from trusted brands like Dorman so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 28 reviews on our Exhaust Manifold and Headers for the 2003 Hummer H2 from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Exhaust Manifold and Headers stock in-person!

Exhaust Manifold and Headers for Your 2003 Hummer H2

Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-522)

Direct Fit Exhaust Manifold: With Heat Shield

from

$114.99
Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

Product Features:
  • Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
  • Complete kit – includes new manifold, manifold gasket, flange gasket, 3 studs, 3 nuts
  • Direct fit – reverse engineered from original equipment for seamless installation
  • Quality engineering – designed and tested in the United States
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Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-732)

Direct Fit Exhaust Manifold: With Heat Shield

from

$162.99
Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

Product Features:
  • Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
  • Complete kit – includes new manifold, manifold gasket, 2 flange gaskets, 3 studs, 3 nuts
  • Direct fit – reverse engineered from original equipment for seamless installation
  • Quality engineering – designed and tested in the United States
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JBA Performance – 1850S-3 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L (Part No.1850S-3)

1850S-3 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L

from

$641.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1850S-3 1 5/8″ Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L
  • Mandrel bent stainless steel tube
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aFe POWER – Twisted Steel Header (Part No.48-44001)

Twisted Steel Header

from

$1052.99
The new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. Combine with a large 1/2″ thick head flange and 14-gauge 409 stainless steel tubing, you have a header that is strong and powerful. Twisted Steel headers are 100-percent bolt-on with no modifications necessary and are proudly engineered and built in Corona, CA.

Product Features:
  • No Cutting Or Drilling Required
  • Formed Collectors
  • Heavy Duty Flanges
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JBA Performance – 1850S-3JS 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Silver Ceramic (Part No.1850S-3JS)

1850S-3JS 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Silver Ceramic

from

$799.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1850S-3JS 1 5/8″ Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Silver Ceramic
  • Mandrel bent stainless steel tube
See More

JBA Performance – 1850S-3JT 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Titanium Ceramic (Part No.1850S-3JT)

1850S-3JT 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Titanium Ceramic

from

$799.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1850S-3JT 1 5/8″ Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L Titanium Ceramic
  • Mandrel bent stainless steel tube
See More

FAQs for 2003 Hummer H2 Exhaust Manifold and Headers

What are the most popular Exhaust Manifold and Headers for the 2003 Hummer H2?

With 3 brands you can trust, our most popular Exhaust Manifold and Headers for the 2003 Hummer H2 parts are:
Direct Fit Exhaust Manifold: With Heat Shield
from $114.99
(16)
Direct Fit Exhaust Manifold: With Heat Shield
Exhaust Manifold and Headers
Direct Fit Exhaust Manifold: With Heat Shield
from $162.99
(12)
Direct Fit Exhaust Manifold: With Heat Shield
Exhaust Manifold and Headers
1850S-3 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L
from $641.99
This product is not rated
1850S-3 1 5/8" Header Shorty Stainless Steel 03-06 GM Truck/Hummer 6.0L
Exhaust Manifold and Headers