2004 Hummer H2 Performance Exhaust Systems

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    • (0 reviews)
      # 20209905
      Hummer H2 2004, MagnaFlow Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Exit Quantity: Dual. Finish: Stainless. Exhaust Inlet Connection Type: Bolt On, Clamp On....
      Built In Stainless Steel For DurabilityTuned, Powerful Exhaust Sound
      $719.24 - $871.04
    • (1 review)
      # 50385711
      Hummer H2 2004, Touring™ Cat-Back Exhaust System by Borla®. Muffler Sound: MILD TONE. Muffler Series: Touring™. System Type: Cat-Back. When you want the best performing, best sounding, and highest quality exhaust system, you...
      Mild Growl SoundHorsepower and torque increased by 7 – 10%
      $1,030.99 - $1,731.99
    • (0 reviews)
      # 3734702
      Hummer H2 2004, Swept Side™ Exhaust System by Gibson®. Exhaust Type: Cat-Back. Exit Configuration: Single. Exit Location: Straight Out The Back Exit. Muffler Chamber Diameter: 8". Muffler Chamber Height: 8". Muffler Chamber...
      Less restriction for increased exhaust flowIncrease of 10-15 horsepower and pound feet of torque
      $466.35 - $608.17
    • (0 reviews)
      # 1520802
      Hummer H2 2004, Sport Stainless Steel Cat-Back Exhaust System with Tips by Corsa®. Muffler Sound: AGGRESSIVE. Muffler Body Material: 304 SS. Muffler Body Finish: Brushed Satin. Muffler Body Shape: Oval. Muffler Type: Inner Core RSC...
      Robust and Bold Performance SoundNo Drone at Touring Speeds
      $1,159.80 - $1,164.23
    • (0 reviews)
      # 100378426
      Hummer H2 2004, Mach Force XP™ 409 SS Cat-Back Exhaust System with Tip by aFe®. Exhaust Type: Cat-Back. Tubing Diameter: 3". Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas...
      Up to 29% Greater Exhaust Flow than stock systemIncreases horsepower and torque
      $745.00
    • (0 reviews)
      # 3730394
      Hummer H2 2004, Performance Header by Gibson®. CARB Compliant: Yes. Primary Tubing Diameter: 1.63". Let your engine breathe and gain power and performance with Gibson Performance Headers. These headers will flow much more exhaust...
      Increases low and mid-range horsepower and torqueIncreases engine efficiency
      $476.49 - $656.89
    • (0 reviews)
      # 98125163
      Hummer H2 2004, Cat4ward™ 1-5/8" Natural Stainless Steel Shorty Headers by JBA®. 1 Pair. Includes Bolts/Studs, Gaskets, Reducers. Header made from Stainless Steel. JBA shorty headers are one of the best performance upgrades...
      $444.63
    • (0 reviews)
      # 61588861
      Hummer H2 2004, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. Catalytic Series: OEM Grade. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $454.27 - $473.29
    • (0 reviews)
      # 61588860
      Hummer H2 2004, Direct Fit Federal Standard Catalytic Converter by MagnaFlow®. Catalytic Series: Standard. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel. CARB Compliant: No. Converter...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $395.45 - $414.45
    • (0 reviews)
      # 61943096
      Hummer H2 2004, SuperMAXX Stainless Steel Intermediate Tubes by Dynatech®. Sold as kit. Y-Pipe Inlet Attachment: 3-bolt flange. Inlet Diameter: 2.50". Y-Pipe Outlet Attachment: 2-bolt flange. Outlet Diameter: 2.50". Y-Pipe...
      T304 Stainless Steel ConstructionHardware Included
      $542.99 - $699.99
    • (0 reviews)
      # 91021403
      Hummer H2 2004, Pro Venom 250-Series Muffler (3" Center Inlet-Outlet Muffler, 14"x9"x4" Body) by Black Widow®. Muffler Chamber Size: 14"x9"x4". Inlet Diameter: 3". Outlet Diameter: 3". Finish: 14-Gauge Polished304 Stainless Steel....
      Made out of durable 304 stainless-steelProducing a crisp, clean sound
      $165.28
    • (0 reviews)
      # 91021401
      Hummer H2 2004, Venom 250-Series Muffler (3" Center Inlet-Outlet Muffler, 14"x9"x4" Body) by Black Widow®. Muffler Chamber Size: 14"x9"x4". Inlet Diameter: 3". Outlet Diameter: 3". Finish: 14-Gauge Brushed 430 Stainless Steel....
      Made of brushed Stainless SteelHigh performance sound characteristics
      $131.95
    • (0 reviews)
      # 91021402
      Hummer H2 2004, Venom 300-Series Muffler (3" Center Inlet-Outlet Muffler, 16"x9"x4" Body) by Black Widow®. Muffler Chamber Size: 16"x9"x4". Inlet Diameter: 3". Outlet Diameter: 3". Finish: 14-Gauge Brushed 430 Stainless Steel....
      Made of quality brushed stainless steelHigh-performance sound characteristics
      $142.03
    • (0 reviews)
      # 61592973
      Hummer H2 2004, 0.030" MLS Exhaust Head Gasket by Cometic Gasket®. Compressed Thickness: 0.030". Port Style: LS1. Cometic MLS Gaskets are comprised of multiple layers of stainless steel providing a even load across the sealing...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # 116548754
      Hummer H2 2004, Exhaust Manifold Gasket Set by Magnum Gasket®. Standard Material. You'd better be ready to take the heat if you're going to seal an exhaust manifold, where temperatures can often exceed 1,000°F. You can count on...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $12.79
    • (0 reviews)
      # 89572466
      Hummer H2 2004, Graph-Flex™ Catalytic Converter Collector Gaskets by Taylor Cable®. These durable gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on almost any...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $14.04
    • (0 reviews)
      # 89572477
      Hummer H2 2004, XX Carbon™ Catalytic Converter Collector Gaskets by Taylor Cable®. All of our XX Carbon exhaust header gaskets are made with Taylor’s proprietary, 100% carbon-felt material construction technology. This unique...
      Will survive 2000°F exhaust temperatures for extended periodsCarbon felt material on a steel core
      $12.74
    • (0 reviews)
      # 115273451
      Hummer H2 2004, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $70.00 - $260.75
    • (0 reviews)
      # 16499582
      Hummer H2 2004, Exhaust Manifold by Dorman®. Finish: Natural. Material: Cast Iron. Exhaust Manifold Inlet Port Shape: Round. Flange Bolt Hole Quantity: 0. Flange Stud Hole Quantity: 3. Heat Shield Included: Yes. With Installation...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $66.95 - $103.95
    • (0 reviews)
      # 87067203
      Hummer H2 2004, CalCat™ Stainless Steel Universal Fit Round Catalytic Converter without Air Tube by Walker®. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: Yes. Converter...
      RIGHT loading of precious metalsThe proper catalyst material and design
      $166.42
    • (0 reviews)
      # 85232465
      Hummer H2 2004, Ultra™ Stainless Steel Direct-Fit Round Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration: Direct Fit....
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $260.75
    • (0 reviews)
      # 87067204
      Hummer H2 2004, Ultra™ Stainless Steel Universal Fit Round Catalytic Converter without Air Tube by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: No. Converter Configuration:...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $90.90
    • (0 reviews)
      # 100289982
      Hummer H2 Engine Family: 4GMXT06.0194 2004, ECO CARB Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Inlet Diameter: 2.5"....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $154.25
    • (0 reviews)
      # 17721286
      Hummer H2 2004, ECO GM Passenger Side Catalytic Converter by Eastern®. Catalytic Series: ECO GM. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $251.29
    • (0 reviews)
      # 17721285
      Hummer H2 2004, ECO II Driver Side Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location:...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $271.05
    • (0 reviews)
      # 100289979
      Hummer H2 2004, ECO II Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. Inlet...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $89.60
    • (0 reviews)
      # 123330905
      Hummer H2 2004, Quiet-Flow™ Aluminized Steel Oval Muffler by Walker®. Muffler Series: Quiet-Flow™. Muffler Body Height: 7". Muffler Body Width: 9". Muffler Body Length: 24". Muffler Overall Length: 28". Muffler Body Material:...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $83.50
    • (0 reviews)
      # 18126080
      Hummer H2 2004, Aluminized Steel Extension Pipe by Walker®. CARB Compliant: No. Material: Aluminized Steel. Outlet Diameter: 2.5". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. Outside Outlet Diameter: 2.5". If you want...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $27.17 - $70.36
    • (0 reviews)
      # 18180116
      Hummer H2 2004, Aluminized Steel Tail Pipe by Walker®. CARB Compliant: No. Material: Aluminized Steel. Inlet Diameter: 2.625". Overall Length: 42". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. Inlet Connection Type: Pipe....
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $70.00
    • (0 reviews)
      # 89572471
      Hummer H2 2004, HTR Round Collector Gasket by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $17.10
    • (0 reviews)
      # 62541399
      Hummer H2 2004, Exhaust Manifold to Cylinder Head Repair Clamp by Dorman®. Attachment Method: Bolt On. Package Type: Box. Easily repair exhaust leaks without removing broken manifold bolts with Dorman’s Exhaust Manifold to...
      Eliminates the need to remove cylinder head, saving you time and moneyIncludes clamp and bolts for a complete repair
      $28.39 - $29.93
    • (1 review)
      # 35473664
      Hummer H2 2004, Rubber Insulator by Walker®. Material: Rubber. Overall Length: 3.5". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will...
      Makes installation quick and easyOptimal OE-style fit and quality
      $8.67
    • (0 reviews)
      # 93522038
      Hummer H2 2004, Exhaust Hanger by Genuine®. Rubber. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off, both for safety and legal reasons, but before you waste...
      $30.34
    • (0 reviews)
      # 71583235
      Hummer H2 2004, GM Original Equipment™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $13.44
    • (0 reviews)
      # 19063464
      Hummer H2 2004, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $13.71
    • (1 review)
      # 24041122
      Hummer H2 2004, Exhaust Manifold Gasket Set by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Multi-Layered Steel. Included: Air Injection Seals, EGR Tube Gasket. When you’re low on oil, coolant or some other fluid, you...
      $14.70
    • (0 reviews)
      # 24043156
      Hummer H2 2004, Exhaust Seal Ring by Victor Reinz®, Use 2 per Car. OEM Standard. Material: Graphite/WireMesh. Type 'E'. ID: 2.401". OD: 3.1105". Thickness: 1.063". When you’re low on oil, coolant or some other fluid, you may be...
      $6.12
    • (0 reviews)
      # 139925415
      Hummer H2 2004, Exhaust Manifold Gasket by Mahle®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you...
      $21.49
    • (0 reviews)
      # 81852537
      Hummer H2 2004 Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $10.92
    • (0 reviews)
      # 19068622
      Hummer H2 2004, Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $6.70 - $7.60
    • (1 review)
      # 140103753
      Hummer H2 2004, Exhaust Flange Gasket by Mahle®. Is your vehicle feeling down on power? Do you see dark puddles on the ground when you park? Is your CHECK ENGINE light on? Your engine may be in need of repair, but before you waste...
      $7.75 - $9.01
    • (0 reviews)
      # 69866231
      Hummer H2 2004, Exhaust Manifold Hardware Kit by Dorman®. Bolt Grade: 10.9. Dog Point Fastener: No. Pilot Point Fastener: No. Thread Size: #1: M8-1.25, #2: M8-1.25. Length: 1.18". Dorman manifold bolt and spring kits are just what...
      Direct replacement for a proper fitConveniently available in packs of different quantities
      $8.32 - $8.42
    • (0 reviews)
      # 31659015
      Hummer H2 2004, Front Exhaust Flange Stud and Nut Kit by Dorman®. Material: Metal. Dog Point Fastener: No. Pilot Point Fastener: No. Thread Size: #1: M10-1.5. Length: 2.44". Quantity: 6 Studs and 6 Nuts. Package Type: Card....
      Direct replacement for a proper fit every timeDurable steel construction
      $9.69
    • (0 reviews)
      # 97208233
      Hummer H2 2004, Standard Duty Black MAXX Coated Headers by Hedman Hedders®. System Type: Shorty. Primary Tubing Diameter: 1.625"., 1 Pair. Includes Bolts/Studs, Gaskets, Reducers. Header made from Steel. The standard-duty Black...
      Made of High Quality MaterialsExtremely durable, protective SATIN BLACK ceramic-metallic coating
      $578.90
    • (0 reviews)
      # 23403269
      Hummer H2 2004, Exhaust Manifold by ATP®. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original parts specifications, to ensure it will install and perform...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $67.66 - $114.19
    • (0 reviews)
      # 91560836
      Universal Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Inlet Diameter: 2". Outlet Diameter: 3". Sold as a pair. Give your vehicle that custom look with our classic shielded side exhaust system. Large inlet and...
      Give your vehicle that custom look with our classic shielded side exhaust system with a show quality chrome finishLarge inlet and outlet pipes with low back pressure six-sided louvered core mufflers
      $254.65 - $296.58
    • (0 reviews)
      # 142860767
      Universal Race Readies™ Exhaust Adapter by Flowtech®. Race Readies let you keep your car or truck’s exhaust system closed for the street, but wide open for the strip. And, since the caps are secured by just three wing nuts, you...
      Race Readies twin pack includes free track toolGuaranteed not to leak
      $69.98 - $103.95
    • (0 reviews)
      # 139245596
      Universal Super Competition™ Weld-Up Race Kit by Hooker®. Series: Super Competition™. Hooker Weld-up kits work great for racers who need to build custom headers when a specific fit tuned Super Competition header is not...
      Mandrel Bent 1 pc. PrimariesSS NHRA Contingency ID Header Tags
      $270.95 - $529.95
    • (0 reviews)
      # mpn358949929
      Universal 3 1/2" Chrome Lake Pipes by Patriot Exhaust®, Sold as a Pair. Includes Muffler, Brackets. Side Pipe made from Steel. Chrome Lake Pipes 63". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $332.21
    • (2 reviews)
      # 120105855
      Universal 200 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 200 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic...
      Exceed all federal emission standardsStainless Steel shells
      $116.53 - $204.95
    • (0 reviews)
      # mpn912861
      Universal 200 Series Stainless Steel Round Catalytic Converter without Air Tube by Flowmaster®. Catalytic Series: 200 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel....
      Exceed all federal emission standardsStainless Steel shells
      $187.66
    • (5 reviews)
      # 120105826
      Universal 220 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 220 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $64.66 - $68.56
    • (5 reviews)
      # 120105830
      Universal 222 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 222 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $67.12
    • (2 reviews)
      # 120105834
      Universal 223 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 223 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $73.86
    • (2 reviews)
      # 120105838
      Universal 225 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 225 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $64.15 - $71.98
    • (7 reviews)
      # 120105843
      Universal 240 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 240 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $129.60 - $144.93
    • (5 reviews)
      # 120105847
      Universal 250 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Catalytic Series: 250 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic Converter...
      Exceed all federal emission standardsStainless Steel shells
      $130.99 - $147.34
    • (0 reviews)
      # mpn886220
      Universal 260 Series Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. Catalytic Series: 260 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel....
      Exceed all federal emission standardsStainless Steel shells
      $247.74
    • (7 reviews)
      # 120105859
      Universal 282 Series OBDII Stainless Steel Catalytic Converter by Flowmaster®. Catalytic Series: 282 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $102.20 - $142.92
    • (2 reviews)
      # 120105876
      Universal 283 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Catalytic Series: 283 Series. CARB Compliant: No. Converter Configuration: Universal Fit. Converter Body Material: Stainless Steel. Catalytic...
      Exceed all federal emission standardsStainless Steel shells
      $103.95 - $127.74




    Guides & Articles

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    2004 Hummer H2 Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    ATAK by Borla
    I drive a 2010 Challenger 5.7 Hemi. I waited 3 years to find the best cat-back exhaust. Someone had to be the Best. Borla decided it would be they. It was the best money I've put into my Dodge. The awesome sound leaves everything else in the dust. This is a no-brainer... Spend the money and unleash the sleeping giant. The cool factor is a ten plus.
    RPosted by Rockie (Keizer, OR) /
    2010 Dodge Challenger
    Was this review helpful for you? Yes1  person found this review helpful.
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