1998 GMC Topkick Performance Headers

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    • (0 reviews)
      # 142868703
      GMC Topkick 6.0L 1998, Turbo Exhaust Headers by Flowtech®. Carb Compliant: No. Flowtech Headers are the perfect combination of quality and value. These “4 to 1” Turbo headers available in 1.75” and 1.875” tube diameters are...
      Heavy duty 16-gauge 304 SS and 409 SS tubing for increased strength and durability1.75” and 1.875” tubing diameters available for increased exhaust flow increasing performance and improved throttle response
      $179.95 - $249.95
    • (0 reviews)
      # 231139424
      GMC Topkick 7.0L 1998, Vibe-Lock Header Bolt Kit 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
      $16.71 - $93.66
    • (0 reviews)
      # mpn1422735905
      GMC Topkick 6.0L 1998, Nickel Plated Wedge-Locking Header Bolt by ProForm®. Finish: Nickel Plated. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $33.08
    • (0 reviews)
      # mpn2072506310
      GMC Topkick 6.0L / 7.0L 1998, Cast Iron Natural Exhaust Manifold by Dorman®. Finish: Natural. Material: Cast Iron. Includes: Exhaust Manifold, 1 Manifold Gasket, 1 Flange Gasket, 3 Studs, 3 Nuts, 3 Springs. More like a complete kit...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $101.95
    • (0 reviews)
      # 409793988
      GMC Topkick 6.0L / 7.0L 1998, Exhaust Manifold by ATP®. Carb Compliant: No. Material: Cast Iron. Includes: (1) Manifold & Flange Gasket, (3) Studs, (3) Nuts, (3) Washers, (3) Springs. ATP Graywerks Exhaust Manifolds are a high...
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $91.18 - $109.46
    • (0 reviews)
      # mpn616581
      GMC Topkick 6.0L 1998, Graphite/Wire Mesh With Sleeve Exhaust Seal Ring by Victor Reinz®. Material: Graphite/Wire Mesh With Sleeve. This product is made of high-quality materials to serve you for years to come. Designed using...
      High quality at an affordable priceExpertly made from premium materials
      $6.72
    • (0 reviews)
      # mpn884792
      GMC Topkick 6.0L 1998, Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
      High quality at an affordable priceExpertly made from premium materials
      $10.27
    • (0 reviews)
      # mpn3557984079
      GMC Topkick 6.0L / 7.0L 1998, Header Locking Bolt Kit by Stage 8®. Thread Pitch: 3/8"-16. Length: 1.5". Package: For 16 Points. Stage 8 manufacturers the World's Best Active Mechanical Locking systems. Stage 8 locking fastener...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $62.31
    • (0 reviews)
      # 285466057
      Universal Aluminized Steel Header Collector Ball Flange Kit by Flowmaster®. Material: Aluminized Steel. Includes: Bolts and Studs. The Collector Ball Flange takes the place of the messy three-bolt connections and ensures a...
      Replaces Messy 3-Bolt Flange ConnectionEnsures Leak Free Connection
      $101.48 - $101.98
    • (1 review)
      # 285466056
      Universal Scavenger Series Y-Collector by Flowmaster®. The patented Scavenger Y-Collector is based on the principles of Pulse Technology. They are designed to harmonize the exhaust pulses from two cylinders that are at the opposite...
      Race Proven TechnologyPatented Design that Creates Low Pressure Zones for Better Scavenging
      $48.74 - $55.38
    • (0 reviews)
      # 285466062
      Universal Header Merge Collector by MagnaFlow®. These headers are a cost effective an easy way to boost your vehicle's horsepower and torque in almost nothing flat. They are made of mandrel bent stainless steel with a ceramic...
      Easy and a cost effective solution to add horsepower and torque to your enginePrecisely designed for quality, fit and function
      $265.16 - $333.13
    • (0 reviews)
      # mpn1295593899
      Universal 304 SS 2-Bolt Manifold Flange by Stainless Works®. Primary Tubing Diameter: 3.02". Material: 304 SS. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $38.00
    • (0 reviews)
      # 266461831
      Universal Ball-Socket Exhaust Flange Kit by Hedman Hedders®. Ball & Socket Header Flange Kits allow you to convert a gasket style, or race style header collector to a gasket-free Ball-Style Collector. Hedman’s gasketless, Ball &...
      Available in 304 Stainless Steel, Aluminized Steel, Mild SteelEasy to Install
      $28.42 - $139.55
    • (0 reviews)
      # 266461860
      Universal Mild Steel Exhaust Header Collectors by Hedman Hedders®. This Hedman Hedders product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $46.42 - $209.49
    • (0 reviews)
      # 266461804
      Universal Header Reducers by Hedman Hedders®. Hedman reducers (exhaust system adapters) weld on to your exhaust system, so you can easily bolt up your Hedman Hedders to the vehicle’s exhaust.
      Available in Mild Steel, Aluminized Steel or Stainless SteelAll necessary hardware included
      $20.28 - $53.48
    • (0 reviews)
      # 266461856
      Universal Husler Race Header Reducers by Hedman Hedders®. Many of Hedman's newer hedder models utilize a ball & socket style collector. If your Hedman Hedders have thisstyle of collector they do not require a gasket.
      Made of High Quality MaterialsBuilt to Last
      $25.52 - $30.39
    • (0 reviews)
      # 266461852
      Universal Heat Riser Valve by Hedman Hedders®. Universal heat riser valve adapters are available in two and three bolt designs, and fit 2-1/2" and 3" collectors.
      Made of High Quality MaterialsEnsure Optimum Performance
      $53.43 - $76.21
    • (0 reviews)
      # 266461787
      Universal Reducer by Flowtech®. Flowtech understands that when you purchase a set of headers, a muffler, or even an entire exhaust system, you want to know that you’re getting everything you need to complete the installation.
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $19.42 - $128.95
    • (0 reviews)
      # 285466052
      Universal High-flow Slip On Collector by Dynatech®. Material: Mild Steel. Dynatech High-Flow Slip On Collectors are designed with maximum exhaust flow in mind. With a High-Flow long transition area, these collectors maximize flow...
      Collectors come race-ready right out of the boxAvailable in a wide variety of primary tube and collector outlet sizes
      $89.99 - $149.99
    • (0 reviews)
      # 285466054
      Universal Elbow Kit by Dynatech®. These Long Tube Pavement Late Model Headers are designed for use with Standard Chevy engines. The Long Tube design promotes excellent torque throughout the RPM range.
      35” Equal Length primaries for maximum Torque and HorsepowerValve covers are removable with headers installed
      $105.99 - $109.99
    • (0 reviews)
      # 285466051
      Universal Mild Steel 80 Degree Elbow by Dynatech®. Finish: Natural. Material: Mild Steel. Specifically designed for use with Dynatech Dirt Late Model Headers. This is an excellent way to get the exhaust routed inside the sheet...
      Delivers a huge boost in performance and an awesome soundRigorously dyno-tested to provide maximum horsepower and torque gains
      $27.99
    • (0 reviews)
      # 285466053
      Universal High-Velocity Merge Collector by Dynatech®. Dynatech Merge Collectors are an excellent way to maximize the potential of your exhaust system. When your exhaust system requires the maximum horsepower, a set of Dynatech...
      Maximizes the potential of the exhaust systemMade of High Quality Materials
      $199.99
    • (0 reviews)
      # 285466061
      Universal Aluminized Steel 3-Bolt Flange Header Collector Extensions by Jones Exhaust®. Material: Aluminized Steel. This Jones Exhaust product is just the option for you in case you want to get the most out of your auto. It is made...
      High quality at an affordable priceExpertly made from premium materials
      $10.08 - $12.98
    • (0 reviews)
      # 285466060
      Universal Aluminized Steel 3-Bolt Flange Header Buddy Reducers by Jones Exhaust®. Material: Aluminized Steel. This Jones Exhaust product is just the option for you in case you want to get the most out of your auto. It is made from...
      High quality at an affordable priceExpertly made from premium materials
      $18.97 - $33.46
    • (0 reviews)
      # 285466065
      Universal Exhaust Collector Flange Kit by Patriot Exhaust®. Flange kits include two flanges, gaskets and flange bolts. All round collector flanges include two block off plates and two flanges. 4-gauge flange thickness. Flange kits...
      Welding Required: YesCollector Ring Finish: Natural
      $12.97 - $17.38
    • (0 reviews)
      # 285466066
      Universal Collector Reducers by Patriot Exhaust®. Patriot Exhaust collector reducers are zinc plated to minimize corrosion while providing a weldable finish. All collector reducer kits come with two reducers, gaskets and flange bolts.
      Zinc plated to minimize corrosionWeld on reducers
      $25.80 - $31.60
    • (0 reviews)
      # 378475798
      Universal Exhaust Turnout 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...
      Expertly crafted from premium materialsQuality design and workmanship
      $87.02 - $151.76
    • (0 reviews)
      # 285466064
      Universal 4-1 Formed Collectors 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...
      Expertly crafted from premium materialsQuality design and workmanship
      $37.60 - $58.67
    • (0 reviews)
      # mpn358950043
      Universal Dome Style Reducer 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...
      Expertly crafted from premium materialsQuality design and workmanship
      $36.04
    • (0 reviews)
      # 266461865
      Universal Collector Insert Reducer 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $21.19
    • (0 reviews)
      # 266461866
      Universal 2 into 1 Y-Pipe Collector 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $103.05 - $114.51
    • (0 reviews)
      # 266461872
      Universal Slip Over Collector 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $45.56 - $225.50
    • (0 reviews)
      # 266461864
      Universal 3 Bolt Exhaust Header Collector Flange 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $5.98 - $6.36
    • (1 review)
      # mpn753352383
      Universal Header Reducer by BTP®. Each. This premium quality part by BTP helps your exhaust system to perform at its full efficiency as well as provide your vehicle with a more aggressive and powerful sound. This part is made from...
      Engineered to make your exhaust system perform at its peakProvides a powerful and aggressive sound
      $10.46
    • (0 reviews)
      # 285466063
      Universal Manifold Clamp-A-Stud by Nickson®. 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...
      Expertly crafted from premium materialsQuality design and workmanship
      $27.20
    • (0 reviews)
      # 171670471
      Universal Hand Merge Collector by Kooks®. With 9-10" long body. Plus 2" for slip on stub section. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $118.93 - $434.57
    • (0 reviews)
      # 171670486
      Universal Steel Female Flare Connector by Kooks®. Material: Steel. 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...
      Made of high Quality MaterialsDesigned to match rigorous quality standards
      $32.16 - $64.33
    • (0 reviews)
      # 171670489
      Universal Stainless Steel Female Ball Socket Connection Kit by Kooks®. Material: Stainless Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      Made of high Quality MaterialsDesigned to match rigorous quality standards
      $58.16 - $257.36
    • (0 reviews)
      # 168439245
      Universal Aluminized Steel Exhaust Header Reducer by DynoMax®. Material: Aluminized Steel. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job....
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $23.13 - $33.31
    • (0 reviews)
      # 142860869
      Universal Terminator™ 3-Bolt Street Hookup Reducer by Flowtech®. Terminator fully-welded reducers/street hookups are designed to be used behind three-bolt design collectors and help make any header installation complete.
      Fully-welded constructionDurable 16 gauge construction
      $39.48
    • (0 reviews)
      # 266461857
      Universal Collector Gasket by Hedman Hedders®. To ensure optimum performance of your Hedman Hedders, always use these genuine Hedman Hedders replacement gaskets.
      Made of High Quality MaterialsEnsure Optimum Performance
      $5.74 - $7.68
    • (0 reviews)
      # 266461846
      Universal 3-Bolt Collector Ring by Hedman Hedders®. Get the most out of your vehicle with this superior product painstakingly designed to provide outstanding quality and uncompromising reliability. It is manufactured from durable...
      Crafted from first-rate materialsMade to strict quality standards
      $5.70 - $6.84
    • (0 reviews)
      # mpn1673775281
      Universal Exhaust Manifold Flange by Vibrant Performance®. Thickness: 0.375". Do you want to get more power out of your vehicle? Then this superior Vibrant Performance product is just for you. Carefully designed for maximum...
      Made of High Quality MaterialsAvailable in different sizes
      $146.21
    • (0 reviews)
      # mpn458111276
      Universal J-SPEC Header Outlet Flange Kit by Vibrant Performance®. This kit consists of a 2-bolt connecting flange (with a flared outlet neck) and a 2.5" Inlet Diameter donut style Graphite Gasket. Features 45 mm O.D. primaries...
      Made of High Quality MaterialsDirect Fit
      $48.09
    • (0 reviews)
      # 368257924
      Universal Exhaust Gasket 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....
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $13.69 - $28.12
    • (0 reviews)
      # 368257922
      Universal Collector Gasket 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....
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $13.69
    • (0 reviews)
      # 368257923
      Universal 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 meet...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $13.17 - $98.42
    • (0 reviews)
      # mpn1300425201
      Universal Thermal Insulating Laminate 3-Bolt Exhaust Header Gasket by DynoMax®. DynoMax has you covered with a full line of accessories and hardware needed to do the complete exhaust job, from clamps to hangers. These small yet...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      $9.00
    • (0 reviews)
      # 266461774
      Universal Real-Seal™ Collector Gasket Kit by Flowtech®. Flowtech Real-Seal collector gaskets are a revolutionary break-through exhaust sealing technology. Constructed of separate layers of "Dead Soft" aluminum, Real-Seals provide...
      Multi-Layer "Dead Soft" aluminum conforms to create a leak proof sealWater - Weather Resistant
      $21.79 - $23.88
    • (0 reviews)
      # 346272661
      Universal Pressure Master™ Collector Gasket by Earl's Performance®. Pressure Master™ Seals, designed and manufactured for Earl’s by Parker Hannifin Corporation, were the first high performance seals developed to solve...
      Uses Aerospace TechnologyReusable/Adaptable
      $18.52 - $21.62
    • (0 reviews)
      # 346272665
      Universal Pressure Master™ Collector Gasket Insert Set by Earl's Performance®. Pressure Master™ Seals, designed and manufactured for Earl’s by Parker Hannifin Corporation, were the first high performance seals developed to...
      Uses Aerospace TechnologyReusable/Adaptable
      $9.32 - $12.95
    • (0 reviews)
      # 332661999
      Universal Exhaust Collector by Mr. Gasket®. Look to Mr. Gasket first for exhaust system gaskets, of course. But they have other exhaust system components to offer as well.
      Gaskets are Mr. Gasket’s heritage and corporate specialtyGasket material in sheets allow you to make your own gaskets when no premade gasket is available
      $6.27 - $13.63
    • (0 reviews)
      # 285466070
      Universal Tri-Shape Exhaust Collector Gasket by Spectre Performance®. Material: Compressed Ceramic Fiber. Includes: 2 Gaskets. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $6.02 - $10.14
    • (0 reviews)
      # mpn21030416
      Universal Compressed Ceramic Fiber Exhaust Gasket Material by Spectre Performance®. Material: Compressed Ceramic Fiber. Includes: 1 Gasket. Rooted in racing, Spectre Performance designs and builds every product with the same goal...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $11.33
    • (0 reviews)
      # mpn2133023
      Universal Natural Exhaust Insulation Wrap by Taylor Cable®. Finish: Natural. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $23.82
    • (0 reviews)
      # 285466072
      Universal Exhaust Insulation Wrap by Taylor Cable®. Finish: Natural. 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...
      Helps To Retain Heat In Exhaust SystemIncreases Horsepower
      $39.93 - $54.66
    • (0 reviews)
      # 285466075
      Universal XX Carbon™ Collector Gaskets by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature monitors to see...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $12.99 - $14.99
    • (0 reviews)
      # 285466058
      Universal Graph-Flex Collector Gaskets by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature monitors to see...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $14.32 - $16.50
    • (0 reviews)
      # 285466073
      Universal Insulation Wrap by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature monitors to see exactly how...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $34.76 - $113.23
    • (0 reviews)
      # 285466069
      Universal Seal-4-Good™ Aluminum Collector Gaskets by Taylor Cable®. Taylor Cable makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $15.84





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