1998 Mercury Mountaineer Performance Exhaust Systems

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    • Gibson® Swept Side™ Cat-Back Single Exhaust System
      (0 reviews)
      # 27654719
      Mercury Mountaineer RWD (Rear Wheel Drive) / 4WD (Four Wheel Drive) without Reload Leveling Suspension 1998, Swept Side™ Cat-Back Exhaust System with Exhaust Tip by Gibson®. Finish: Natural. Exit Configuration: Single. Main...
      Less restriction for increased exhaust flowIncrease of 10-15 horsepower and pound feet of torque
      $334.99 - $432.62
    • Patriot Exhaust® Hi-Temp Black Coated Steel Tight Tuck Street Rod Headers, 1 3/4" Tubes
      (0 reviews)
      # 91560807
      Mercury Mountaineer 5.0L With Small Block Ford Engine 1998, Hi-Temp Black Coated Steel Tight Tuck Street Rod Headers, 1 3/4" Tubes by Patriot Exhaust®. Collector diameter: 2 1/2". Tight Tuck headers are the solution to many...
      $206.93
    • Schoenfeld Headers® Stock Clip Crossover Headers, Tubes 1 3/4", Collector ID 3 1/2"
      (0 reviews)
      # 56801730
      Mercury Mountaineer With Ford Small Block Engine 5.0L 1998, Stock Clip Crossover Headers, Tubes 1 3/4", Collector ID 3 1/2" by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $302.20
    • Schoenfeld Headers® Stock Clip Headers, Tubes 1 3/4"-1 7/8", Collector ID 3 1/2", Collector Length 9"
      (0 reviews)
      # 56801743
      Mercury Mountaineer With Ford Small Block Engine 5.0L 1998, Stock Clip Headers, Tubes 1 3/4"-1 7/8", Collector ID 3 1/2", Collector Length 9" by Schoenfeld Headers®. Comes in a set. Fenderwell, Painted. Includes Bolts/Studs,...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $311.95
    • Flowmaster® Direct Fit Stainless Steel Federal Catalytic Converter with Ceramic Substrate
      (0 reviews)
      # 12746140
      Mercury Mountaineer 4.0L 1998, Direct Fit Stainless Steel Federal Catalytic Converter by Flowmaster®. Inlet Diameter: 2.25". Outlet Diameter: 2.25". Catalytic Converter Body Length: 10". Converter Configuration: Direct-Fit....
      Exceed all federal emission standardsStainless Steel shells
      $229.07 - $237.71
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 62247235
      Mercury Mountaineer with TLEV Specification 1998, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Catalytic Series: OBDII. Catalytic Converter Substrate Material: Ceramic. Converter Body Material: Stainless Steel....
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $375.89 - $576.39
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61589653
      Mercury Mountaineer 4.0L 1998, 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:...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $323.29 - $338.67
    • MagnaFlow® Direct Fit Federal Standard Catalytic Converter
      (0 reviews)
      # 61589652
      Mercury Mountaineer 1998, 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 body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $220.54 - $399.90
    • DynoMax® Super Turbo™ Direct Fit Muffler
      (0 reviews)
      # 18215942
      Mercury Mountaineer 4.0L Before 11-8-99 1998, Direct Fit Muffler by DynoMax®. Muffler Series: Super Turbo™. Muffler Body Length: 20". Muffler Body Width: 9.75". Muffler Body Height: 4.25". Muffler Overall Length: 38". Muffler...
      Constructed to increase horsepower and torque thanks to improved exhaust flowAluminized steel Super Turbo muffler maintains a mellow performance tone
      $148.03
    • DynoMax® Tail Pipe
      (0 reviews)
      # 18216089
      Mercury Mountaineer 1998, Tail Pipe by DynoMax®. Material: Steel. Inlet Diameter: 2.5". Outlet Diameter: 2.5". Overall Length: 52.68". With their great selection of exhaust pipes and accessories, DynoMax will provide you with...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $119.12
    • Hooker® Super Competition™ Header Gasket
      (0 reviews)
      # 64168082
      Mercury Mountaineer 5.0L 1998, Super Competition™ Header Gasket by Hooker®. Series: Super Competition™. Port Shape: Double Flange. Thickness: 0.07". Hooker's precision-matched Super Competition header gaskets provide a sure fit...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.97
    • Proform® Header Gasket Set
      (0 reviews)
      # 84409803
      Mercury Mountaineer 5.0L 1998, Header Gasket Set 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...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $27.76 - $29.49
    • Schoenfeld Headers® 1.625" Round Port Exhaust Gasket
      (0 reviews)
      # 56801464
      Mercury Mountaineer With Ford Small Block Engine 5.0L 1998, 1.625" Round Port Exhaust Gasket by Schoenfeld Headers®, 1 Piece. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $13.34
    • Hedman Hedders® Husler Port Flanges
      (0 reviews)
      # 97234841
      Mercury Mountaineer 5.0L 1998, Husler Port Flanges by Hedman Hedders®. Comes in a kit. Includes Gaskets, Mounting Hardware. Header Flange made from Steel. Hedman Husler Hedder flanges are the same high quality, port matched flanges...
      Made of High Quality MaterialsBuilt to Last
      $120.35 - $200.59
    • Magnum Gasket® Exhaust Manifold Gasket Set
      (0 reviews)
      # 82704456
      Mercury Mountaineer 4.0L 1998, 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...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $9.35
    • Mr. Gasket® Exhaust Manifold Gasket Set
      (0 reviews)
      # 102218823
      Mercury Mountaineer 5.0L with Small Block Ford Engine 1998, Exhaust Gasket Set 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...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $24.95
    • Mr. Gasket® Ultra-Seal™ Exhaust Gasket Set
      (0 reviews)
      # 102171273
      Mercury Mountaineer 5.0L with Windsor Heads with Dart Stage 5 Engine 1998, Rectangular Port Ultra-Seal™ Exhaust Gasket Set by Mr. Gasket®. Size: 1.30" x 1.40".
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $28.53
    • Taylor Cable® Seal-4-Good™ Exhaust Header Gaskets
      (0 reviews)
      # 89574385
      Mercury Mountaineer 5.0L 1998, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking air into the...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $33.74
    • Taylor Cable® XX Carbon™ Exhaust Header Gaskets
      (0 reviews)
      # 89574392
      Mercury Mountaineer 5.0L 1998, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $18.79
    • Spectre Performance® Exhaust Header Gaskets
      (0 reviews)
      # 12054038
      Mercury Mountaineer 5.0L With Stock Square Ports 1998, Exhaust Header Gaskets by Spectre Performance®. Gasket Material: Ceramic Fiber. Package Quantity: 2. Thickness: 0.063" (2 mm). Includes: 2 Gaskets. Rooted in racing, Spectre...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $8.52
    • Dorman® Exhaust Manifold
      (0 reviews)
      # 16499879
      Mercury Mountaineer 1998, Exhaust Manifold by Dorman®. Package Quantity: 1; Package Type: Box. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation....
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $52.95 - $131.95
    • Walker® CalCat™ Direct Fit Catalytic Converter
      (0 reviews)
      # 17731985
      Mercury Mountaineer 1998, CalCat™ Direct Fit Catalytic Converter by Walker®. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: CARB Compliant. Converter Configuration: Direct-Fit. Inlet...
      $243.88 - $408.72
    • Walker® CalCat™ Small Oval Universal Fit Catalytic Converter
      (0 reviews)
      # 87067946
      Mercury Mountaineer 1998, CalCat™ Stainless Steel Universal Fit Catalytic Converter by Walker®. Catalytic Series: CalCat™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: CARB Compliant. Converter...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $106.96 - $157.43
    • Walker® Ultra™ Direct Fit Catalytic Converter
      (0 reviews)
      # 85233555
      Mercury Mountaineer 1998, Ultra™ Stainless Steel Direct Fit Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: EPA Compliant. Converter Configuration:...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $176.54 - $323.49
    • Walker® Ultra™ Small Oval Universal Fit Catalytic Converter
      (0 reviews)
      # 87067945
      Mercury Mountaineer 1998, Ultra™ Stainless Steel Universal Fit Catalytic Converter by Walker®. Catalytic Series: Ultra™. Catalytic Converter Substrate Material: Ceramic. CARB Compliant: EPA Compliant. Converter Configuration:...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $84.49
    • Bosal® Direct Fit Catalytic Converter
      (0 reviews)
      # 20574082
      Mercury Mountaineer 1998, Direct Fit Catalytic Converter by Bosal®. Converter Configuration: Direct Fit. CARB Compliant: No. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $190.90 - $261.26
    • Eastern® ECO CARB Universal Fit Catalytic Converter
      (0 reviews)
      # 111780918
      Mercury Mountaineer 1998, Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: Yes. Without Inlet Gasket. If you...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $249.95 - $366.72
    • Eastern® ECO CARB Universal Fit Large Oval Catalytic Converter
      (0 reviews)
      # 111780883
      Mercury Mountaineer 4.0L Eng. Fam.: WFMXT04.0FAA 1998, Catalytic Converter by Eastern®. Catalytic Series: ECO CARB. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: Yes....
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $154.25 - $154.76
    • Eastern® ECO II Direct Fit Catalytic Converter
      (0 reviews)
      # 111780933
      Mercury Mountaineer 1998, Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. Catalytic Converter Oxygen Sensor Location: Rear. CARB...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $186.52 - $278.87
    • Eastern® ECO II Universal Fit Oval Catalytic Converter
      (0 reviews)
      # 100292606
      Mercury Mountaineer 1998, Catalytic Converter by Eastern®. Catalytic Series: ECO II. Converter Configuration: Universal Fit. Catalytic Converter Format: Main Catalytic Converter. CARB Compliant: No. Without Inlet Gasket. Without...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $62.25 - $64.60
    • Eastern® Standard Direct Fit Catalytic Converter
      (0 reviews)
      # 17574518
      Mercury Mountaineer 1998, Catalytic Converter by Eastern®. Converter Configuration: Direct Fit. Catalytic Converter Format: Main Catalytic Converter. If you need to replace your failed or damaged catalytic converter, this product...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $191.23 - $313.06
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 86073013
      Mercury Mountaineer 1998, Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty...
      Direct fitMade from a heavy duty stainless steel outer shell
      $205.03 - $429.80
    • AP Exhaust® Direct Fit Catalytic Converter
      (0 reviews)
      # 80144503
      Mercury Mountaineer 1998, Direct Fit Catalytic Converter by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts and catalytic convert systems can be...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $205.50 - $299.01
    • Walker® Quiet-Flow™ Stainless Steel Aluminized Oval Muffler
      (0 reviews)
      # 35477635
      Mercury Mountaineer 1998, Quiet-Flow™ Stainless Steel Aluminized Oval Muffler by Walker®. Muffler Series: Quiet-Flow™. Muffler Body Height: 5.5". Muffler Body Width: 11". Muffler Body Length: 20". Muffler Body Material:...
      $89.05 - $109.68
    • Walker® Resonator Assembly
      (0 reviews)
      # 18165339
      Mercury Mountaineer 1998, Stainless Steel Aluminized Round Resonator Assembly by Walker®. Muffler Body Height: 4". Muffler Body Width: 4". Muffler Body Finish: Aluminized. Muffler Body Shape: Round. Material: Stainless Steel. Inlet...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $64.08 - $65.20
    • Walker® SoundFX™ Stainless Steel Aluminized Oval Direct Fit Muffler
      (0 reviews)
      # 18169985
      Mercury Mountaineer 1998, SoundFX™ Stainless Steel Aluminized Oval Direct Fit Muffler by Walker®. Muffler Series: SoundFX™. Muffler Body Height: 5.5". Muffler Body Width: 11". Muffler Body Length: 20". Muffler Body Material:...
      $69.98 - $88.53
    • AP Exhaust® Challenge Series Muffler
      (0 reviews)
      # 80144498
      Mercury Mountaineer 1998, Challenge Series Muffler by AP Exhaust®. Body Shape: Oval. Outlet Diameter: 2.25". This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to...
      Limited Lifetime Warranty backed by AP Exhaust Products100% aluminized components
      $53.97 - $136.72
    • AP Exhaust® MSL Maximum Direct Fit Muffler
      (0 reviews)
      # 80144515
      Mercury Mountaineer 1998, MSL Maximum Direct Fit Muffler by AP Exhaust®. Cross Section: 4.06" x 10.5". Body Shape: Oval. Outlet Diameter: 2.25". This superior product was carefully designed with key attention to detail and...
      Designed for a quiet ride100% aluminized components for longer life
      $76.63 - $99.59
    • Walker® Replacement Exhaust Kit
      (0 reviews)
      # 115313339
      Mercury Mountaineer 5.0L 1998, 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...
      Catalytic Converters Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $46.89 - $323.49
    • Walker® Tail Pipe
      (0 reviews)
      # 18180075
      Mercury Mountaineer 5.0L 1998, Stainless Steel Aluminized Tail Pipe by Walker®. Material: Stainless Steel. Inlet Diameter One: 2.25". Overall Length: 61.875". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type:...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $46.89
    • Walker® Heavy Duty U-Bolt Clamp
      (1 reviews)
      # 18129520
      Mercury Mountaineer 4.0L 1998, Heavy Duty Stainless Steel U-Bolt Clamp by Walker®. Material: Stainless Steel. Diameter: 2". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.09
    • Walker® Heavy Duty U-Bolt Clamp
      (2 reviews)
      # 104660053
      Mercury Mountaineer 1998, Heavy Duty Stainless Steel U-Bolt Clamp by Walker®. Material: Stainless Steel. Diameter: 2.25". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.29
    • Flowtech® Real-Seal™ Aluminum Header Gaskets
      (0 reviews)
      # 100093803
      Mercury Mountaineer 5.0L MFI 1998, Header Gaskets by Flowtech®. Flowtech REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of separate layers of “Dead Soft”...
      Multi-Layer “Dead Soft” aluminum conforms to create a leak-proof sealWill not burn or blow out
      $45.62
    • Bosal® Rear Exhaust Flange Gasket
      (0 reviews)
      # 95029531
      Mercury Mountaineer 5.0L 1998, Rear Exhaust Flange Gasket by Bosal®. Location: Rear. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $7.42
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 19062054
      Mercury Mountaineer 1998, 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,...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.65 - $9.65
    • Victor Reinz® Exhaust Manifold Gasket
      (0 reviews)
      # 24176747
      Mercury Mountaineer 1998, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But...
      $9.20 - $9.62
    • RHS® Header Gasket
      (0 reviews)
      # 89698388
      Mercury Mountaineer 5.0L 1998, Header Gasket by RHS®. Size: 1.30"x 1.60".
      $37.18
    • Walker® Exhaust Gasket
      (0 reviews)
      # 18141486
      Mercury Mountaineer 5.0L 1998, Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet.
      $2.96 - $10.31
    • Fel-Pro® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 19073711
      Mercury Mountaineer 4.0L 1998, Exhaust Pipe Flange Gasket by Fel-Pro®. Location: Converter. 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $9.62
    • Dorman® Front Exhaust Flange Stud and Nut Kit
      (0 reviews)
      # 31663758
      Mercury Mountaineer 1998, Front Exhaust Flange Stud and Nut Kit by Dorman®. Size: M12-1.75 x 62mm; Package Quantity: 1; Package Type: Card. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for...
      Direct replacement for a proper fit every timeDurable steel construction
      $8.34
    • Fel-Pro® Exhaust Bolt and Spring
      (0 reviews)
      # 19058548
      Mercury Mountaineer 5.0L 1998, Exhaust Bolt and Spring by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $10.24
    • Taylor Cable® Graph-Flex™ Exhaust Header Gaskets
      (0 reviews)
      # 89574373
      Mercury Mountaineer 5.0L 1998, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $20.70
    • Taylor Cable® HTR Oval Collector Gasket
      (0 reviews)
      # 89574378
      Mercury Mountaineer 5.0L 1998, HTR Oval 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $19.71 - $21.54
    • Taylor Cable® HTR Rectangle Collector Gasket (1.625"x1.25")
      (0 reviews)
      # 89466886
      Mercury Mountaineer 5.0L 1998, HTR Rectangle Collector Gasket (1.625"x1.25") by Taylor Cable®. Type: Rectangular 1.625" x 1.25". This products is an OEM and Performance company that was built on its founding heritage supported by a...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $19.71
    • Taylor Cable® XX Carbon™ Oval Dual Bolt Header Gasket (1.71"x1.42")
      (0 reviews)
      # 89466885
      Mercury Mountaineer 5.0L 1998, XX Carbon™ Oval Dual Bolt Header Gasket (1.71"x1.42") by Taylor Cable®. Type: Dual Bolt 1.71" x 1.42". This products is an OEM and Performance company that was built on its founding heritage...
      Limited Lifetime Replacement WarrantyWithstands Long Term Exposure To Over 2000 Degrees
      $20.92
    • Taylor Cable® Graph Flex Oval Dual Bolt Header Flange Gasket (1.71"x1.42")
      (0 reviews)
      # 89466883
      Mercury Mountaineer 5.0L 1998, Graph Flex Oval Dual Bolt Header Flange Gasket (1.71"x1.42") by Taylor Cable®. Type: Dual Bolt 1.71" x 1.42". This products is an OEM and Performance company that was built on its founding heritage...
      Limited Lifetime Replacement WarrantyWithstands Long Term Exposure To Over 2000 Degrees
      $23.04
    • Taylor Cable® Seal-4-Good Oval Dual Bolt Header Flange Gasket (1.71"x1.42")
      (0 reviews)
      # 89466881
      Mercury Mountaineer 5.0L 1998, Seal-4-Good Oval Dual Bolt Header Flange Gasket (1.71"x1.42") by Taylor Cable®. Type: Dual Bolt 1.71" x 1.42". This products is an OEM and Performance company that was built on its founding heritage...
      Limited Lifetime Replacement WarrantyMade Of Dead Soft Aluminum
      $33.74
    • Flowtech® Aluminum Header Gaskets
      (0 reviews)
      # 100082270
      Mercury Mountaineer 5.0L MFI 1998, Header Gaskets by Flowtech®. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets and (2) 2.5" collector gaskets. This product is made of high-quality materials to serve you for...
      Engineered for a precise, easy fitManufactured of P73 Ferroglass non-asbestos facing material for long life
      $10.04
    • Patriot Exhaust® Steel Chrome Shielded Side Exhaust System
      (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
    • Patriot Exhaust® 3.5" Chrome Lake Pipes (H1165)
      (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
      $356.10




    Guides & Articles

    • Performance Exhaust Systems
      Here's A "Tip": Exhaust Tips Are An Easy Way To Dress Up Your Tailpipe
      Performance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

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    1998 Mountaineer Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 24 reviews
    5 of 5
    Just What I Needed
    As described and at the right price. Easy, fast delivery. A great buy!
    SPosted by Susan (Smith River, CA) /
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