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    • (4 reviews)
      # sp110016
      Direct Fit Catalytic Converter with Integrated Manifold by PaceSetter®. If you want to get the most out of your vehicle, this PaceSetter product is second to none. Engineered with meticulous attention to detail, it guarantees impeccable...
      $160.96 - $433.73
    • (4 reviews)
      # sp96182
      Direct Fit OEM Grade Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will...
      $285.10 - $1,040.56
    • (0 reviews)
      # sp109886
      Heavy Metal Federal Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $238.99 - $796.77
    • (0 reviews)
      # sp105124
      Standard Grade Direct Fit Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance, and...
      $160.80 - $1,066.25
    • (0 reviews)
      # sp124138
      Exhaust Headers by Torxe®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $90.00 - $700.00
    • (0 reviews)
      # sp127871
      Universal Block Hugger Racing Exhaust Headers by Flowtech®. Flowtech Headers are the perfect combination of quality and value. This tight fit block hugger header fits all popular hot rods. Block Hugger headers are ideal for street rods...
      +1
      $281.95 - $364.95
    • (0 reviews)
      # sp28992
      Lakester Weld-Up Kit by Patriot Exhaust®. This superior Patriot EXhaust product is just for you. Carefully designed for maximum performance, is will more than just meet your needs and expectations. This product is built from top-grade...
      Perfect blend of style, quality, and dependabilityGive your rod a nostalgic look
      $229.26 - $453.47
    • (0 reviews)
      # sp135613
      Cast Series Header by Sanderson Headers®. Emissions: EPA compliant. The QP1000 cast iron "Quiet Performer" header overcomes limitations of tube-style headers in both fit and in its ability to produce gains in both low end torque and...
      D-Port Design with Cast-In Anti-Reversion BafflingPremium Casting Materials
      $425.00 - $720.00
    • (0 reviews)
      # sp135619
      Hugger Headers by Sanderson Headers®. This top-notch product by Sanderson Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to detail to guarantee...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $265.00 - $625.00
    • (0 reviews)
      # sp135621
      Twister Header by Sanderson Headers®. The new Twister outside chassis header offers a unique look to roadster header design while including important features to make your installation easy and trouble-free. Mufflered exhaust collectors...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $1,360.00 - $1,500.00
    • (0 reviews)
      # sp97695
      SBC Chassis Exhaust Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $167.23 - $250.87
    • (0 reviews)
      # sp29089
      Truck Tractor Pull Headers by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to detail...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $219.50 - $492.61
    • (0 reviews)
      # sp136937
      Header Gasket by AllStar Performance®. Header Gasket by AllStar Performance®, 1 Piece. Durable reinforced steel core and graphite composite gaskets remain soft and pliable to conform to header and head surfaces providing an excellent,...
      Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials
      $7.59 - $9.99
    • (0 reviews)
      # mpn4515293962
      Ram Horn Exhaust Manifolds by AllStar Performance®. Pair. All new, "Ram Horn" manifolds have increased exhaust flow over traditional manifolds and added steering shaft clearance. Ideal for circle track classes requiring cast iron...
      Precise manufacturing and high-grade materialsExpertly Crafted from the highest grade materials
      $299.99
    • (0 reviews)
      # sp96544
      Header Flange Kit by Moroso®. Material: Aluminum. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $115.02
    • (0 reviews)
      # mpn358507470
      Multi-Layer Steel Exhaust Header Gasket by Cometic Gasket®. Material: Multi-Layer Steel. Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and resist corrosion. They will not...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (0 reviews)
      # sp33219
      HP Manifold Shield by Heatshield®. Heatshield Products Manifold Shield is designed to keep heat inside your exhaust and turbo manifold. Made from rugged, high-temperature materials, this exhaust manifold heat shield is designed to...
      High quality at an affordable priceExpertly made from premium materials
      $268.83 - $283.08
    • (0 reviews)
      # sp83360
      Header Gasket by Howe Racing Enterprises®. Designed utilizing the latest technology, this product by Howe Racing Enterprises® features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      High quality at an affordable priceExpertly made from premium materials
      $12.03
    • (0 reviews)
      # sp23705
      Exhaust Header Gasket by Proform®. If you are looking to enhance your vehicle's performance, then this top-notch product is definitely what you need. Manufactured from premium quality materials this Proform product provides efficient...
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $25.40 - $34.22
    • (0 reviews)
      # sp87026
      Exhaust Header Gasket by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees - day after day, week after week, year...
      Remflex exhaust gaskets come in a standard 1/8" thickness and are designed to crush 50%. This allows them to fill gaps in the flange surface up to 1/16"100% flexible graphite construction means Remflex gaskets are good for up to 3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $11.19 - $43.99
    • (0 reviews)
      # sp43676
      Seal-4-Good Collector Gasket by Percy's High Performance®. Percy's Seal-4-Good collector gaskets are referred to, by many, as the "best on the market". These "Dead Soft" aluminum gaskets seal far better than competitive copper gaskets....
      Will Not Blow-Out Or Burn-OutCreates Ultimate Seal
      $14.41
    • (0 reviews)
      # sp110006
      8 Stage Header Bolt Kit by Kooks®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Kooks will last a lifetime. It will...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $57.35
    • (0 reviews)
      # sp3663
      Header Bolts by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you’ll need gaskets and manifold bolts.
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $8.39 - $44.09
    • (0 reviews)
      # sp44300
      Header Bolts by ProForm®. 12 Pieces.
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $33.13
    • (0 reviews)
      # sp92964
      Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and clip are present then...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $15.30 - $109.29
    • (0 reviews)
      # sp92965
      Header Locking Bolt Kit-H by Stage 8®.
      $15.30 - $109.29
    • (0 reviews)
      # 1022483080
      304 SS Turbo Exhaust Headers by Stainless Works®. Emissions: Racing Only. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention...
      $1,211.25 - $1,396.50
    • (0 reviews)
      # 841421835
      304 SS Turbo Exhaust Headers by Stainless Works®. Collector Outlet Diameter: 3". Emissions: Racing Only. Color: Silver. Header Coating: Uncoated. This superior product is made from high-grade stainless steel to ensure excellent quality...
      $1,211.25 - $1,396.50
    • (0 reviews)
      # 960111134
      Exhaust Headers by Torxe®. Emissions: Racing Only. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
      $150.00 - $303.75
    • (0 reviews)
      # 1022100039
      Exhaust Headers by Torxe®. Emissions: Racing Only. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver...
      $150.00 - $303.75




    The Hummer H3 exudes alpha-male appeal like no other vehicle. But does its engine sound as mighty? A low-restriction cat-back exhaust system that uses specifically tuned mufflers will give it the right tone while adding more horsepower and torque. Performance headers will complement your exhaust system build. The key point of headers is that they let burnt gases leave the vehicle in a freer fashion, resulting in smaller power losses and better engine responsiveness. Additionally, headers are acoustically nicer, better looking under the hood, lighter, and stronger than exhaust manifolds. That’s because their tubes are thinner and are made of stainless steel rather than cast iron.

    Put together, these features make your SUV quite a lot cooler. You get more power to conquer the terrain. You get lower weight for better front-rear weight distribution and dynamics. You also get a more agreeable exhaust sound. All that comes at an acceptable cost and requires the minimum of experience to be installed. Check out our Hummer H3 performance headers to get yourself the most advantageous products giving your SUV the maximum of advantages while costing a reasonable amount of money.

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    Hummer H3 Performance Headers Reviews

    Average rating:  4  4 - 3 reviews
    3.8 of 5
    H3 Hummer Exhaust Manifold
    They fit good went in easily only problem was the supplied [3] collector studs were to short to get a nut started on, luckily I purchased another set of studs that were long enough!!
    FPosted by Frederick (Challis, ID) / November 3, 2017
    2006 Hummer H3
    Was this review helpful for you? Yes
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