1998 Audi A4 Exhausts

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    • (0 reviews)
      $1,308.11$1,046.49
      Audi A4 Quattro 1.8L 1998, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®, MODERATE SOUND. Dual Rear Exit. 3" Tubing. 5" x 8" x 11" Muffler. 5" x 8" x 14" Resonator. 3.5" Polished Stainless Tip. The Street...
      # 20206391
    • (0 reviews)
      $1,059.99$847.99
      Audi A4 Quattro 1.8L AEB 1998, Stainless Steel Cat-Back Exhaust System by Borla®, AGGRESSIVE SOUND. Dual Left Rear Exit. 3.14" Inlet / 4.63" Outlet Dual Round Rolled Angle-Cut Long Tip. 2.25" Tubing. When you want the best...
      # 1221766
    • (0 reviews)
      $587.54from $470.03 - $587.89
      Audi A4 1998, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. Includes Gasket. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will...
      # 35252805
    • (0 reviews)
      $587.54$470.03
      Audi A4 / A4 Quattro 2.8L 1998, Direct Fit Federal Catalytic Converter by MagnaFlow®. 21.75" Wide. Includes Gasket. If your car needs replacement, install one that will get you through the smog check and give you more horsepower....
      # 22199315
    • (0 reviews)
      $564.08$451.26
      Audi A4 / A4 Quattro 1.8L 1998, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. 7" Wide. Includes Gasket. If your car needs replacement, install one that will get you through the smog check and give you more...
      # 22198876
    • (0 reviews)
      $452.66$362.13
      Audi A4 / A4 Quattro 1.8L 1998, Direct Fit Federal Pre-OBDII Catalytic Converter by MagnaFlow®. 2" Inlet / 2" Outlet Diameter. 7.13" Wide. Includes Gasket, Air Tube. If your car needs replacement, install one that will get you...
      # 22198037
    • (0 reviews)
      $332.75$266.20
      Audi A4 Quattro 1.8 1998, Muffler by Eberspaecher®. NLA 9/14. Position: Center. 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...
      # 7797026
    • (0 reviews)
      $637.61from $510.09 - $527.90
      Audi A4 Quattro 1998, Muffler by Genuine®. 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 your time...
      # 8841725
    • (0 reviews)
      $114.71$91.77
      Audi A4 Automatic Transmission 1.8L 1998, Connecting Pipe by Ansa®. Position: Front. Note: Catalytic Converter to Center/Front Muffler. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system...
      # 7770221
    • (0 reviews)
      $151.74$121.39
      Audi A4 1.8 Standard 1998, Exhaust Pipe by Starla®. Position: Front. Note: Catalytic Converter to Center/Front Muffler. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be...
      # 7792263
    • (0 reviews)
      $616.41$493.13
      Audi A4 / A4 Quattro 1.8L 1998, Exhaust Manifold by Genuine®. 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...
      # 8819979
    • (0 reviews)
      $5.90$4.72
      Audi A4 1.8L 1998, Exhaust Flange Gasket by Bosal®. Between Converter and Front Pipe. 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
      # 20554885
    • (0 reviews)
      $9.58$7.66
      Audi A4 1998, Rubber Mounting by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get OE-quality...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      # 20554870
    • (0 reviews)
      $2.81$2.25
      Audi A4 / A4 Quattro 1.8L 1998, Exhaust Stud by Genuine®. Turbo to Manifold Studs. Note: Turbocharger to Exhaust Manifold Mounting Studs 10x28mm Also recommended #s When Replacing Turbo Charger 058 115 105C Oil Pump 058 145 735...
      # 8820638
    • (0 reviews)
      $351.55from $281.24 - $336.30
      Audi A4 1.8L 1998, Direct Fit Catalytic Converter by Walker®. This catalytic converter is constructed specially for your vehicle to directly replace the original equipment part and comes ready to install. The part is designed to...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      # 35446451
    • (0 reviews)
      $107.41from $85.93 - $148.93
      Audi A4 1998, Universal Catalytic Converter by Walker®. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It is designed to meet the EPA policy and emission reduction...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      # 8747172
    • (0 reviews)
      $241.78from $193.42 - $255.83
      Audi A4 1998, Catalytic Converter by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use advanced manufacturing...
      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
      # 20554899
    • (0 reviews)
      $416.04$332.83
      Audi A4 2.8L 1998, EPA Direct Fit Undercar Catalytic Converter by Eastern®. Inlet: 3 Bolt Welded. Outlet: 2". Series: ECO II. Two Oxygen Sensor Port. O/2 Style: 18mm x 1.5mm. One Clamp. If you need to replace your failed or damaged...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      # 17570198
    • (0 reviews)
      $76.34from $61.07 - $64.20
      Audi A4 2.8L 1998, EPA Universal Fit Undercar Catalytic Converter by Eastern®. Series: ECO II. Overall Lenght: 14". Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      # 17576415
    • (0 reviews)
      $595.19from $476.15 - $477.74
      Audi A4 3.56" Engine Stroke 1998, Catalytic Converter by DEC®. 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...
      # 7643355
    • (0 reviews)
      $206.64from $165.31 - $300.97
      Audi A4 1998, Quiet-Flow Muffler by Walker®. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% structural stainless steel construction that resists rust three times longer than aluminized mufflers...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      # 17724361
    • (0 reviews)
      $148.68from $118.94 - $279.90
      Audi A4 1998, Muffler by Bosal®. This muffler is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation...
      Designed to deliver ultimate performance and a quality OE-style soundAluminized steel construction for maximum durability
      # 20554906
    • (0 reviews)
      $75.79from $60.63 - $78.96
      Audi A4 1.8L 1998, Front Exhaust Pipe by Bosal®. This pipe is engineered to meet OE specs to ensure precise, factory-like fit, performance, and reliability. This part features a direct fit design allowing for ease of installation....
      Stainless or aluminized steel construction for durabilityPrecision-manufactured for easy fitment
      # 20554895
    • (0 reviews)
      $5.15$4.12
      Audi A4 1.8L 1998, Exhaust Washer by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      # 20553868
    • (0 reviews)
      $3.95$3.16
      Audi A4 1.8L 1998, Manifold Bolt by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get OE-quality...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      # 20553908
    • (0 reviews)
      $0.43$0.34
      Audi A4 / A4 Quattro 1.8L 1998, Manifold Nut by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      # 20553740
    • (0 reviews)
      $8.13from $6.50 - $13.91
      Audi A4 / A4 Quattro 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
      # 19058664
    • (0 reviews)
      $20.01$16.01
      Audi A4 / A4 Quattro 1.8L 1998, Exhaust Manifold Gasket by AJUSA®. These gaskets seal components in the intake and exhaust systems of the vehicle such as the intake manifold, intake plenum, and exhaust manifold to the engine or...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 23005341
    • (0 reviews)
      $10.48$8.38
      Audi A4 / A4 Quattro 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...
      # 24054945
    • (0 reviews)
      $20.25from $16.20 - $21.24
      Audi A4 1998, Pipe Connector by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quick and easy. Choose Bosal, and you'll get OE-quality...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      # 20554891
    • (0 reviews)
      $2.03from $1.62 - $1.80
      Audi A4 1998, Clamp by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories,...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18159230
    • (0 reviews)
      $8.43$6.74
      Audi A4 L4 1998, Gasket by Walker®. Material - Fiber Material and Metal Laminate, 3 Bolt Style, 0.058" Thickness, Bolt Hole Center to Center Distance - 2.89", Bolt Hole Diameter - 0.34", Port Dimensions - 2.27" L x 2.27" W, 1...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18135639
    • (0 reviews)
      $1.04$0.83
      Audi A4 / A4 Quattro 3.56" Engine Stroke 1998, Exhaust Nut by Febi®. Note: Shouldered (8x12mm) Self Locking. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put off,...
      # 8392523
    • (0 reviews)
      $9.05$7.24
      Audi A4 / A4 Quattro 1.8L 1998, 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 40584103
    • (0 reviews)
      $11.06from $8.85 - $10.30
      Audi A4 1998, Exhaust Manifold Gasket by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      # 35821097
    • (0 reviews)
      $22.49from $17.99 - $22.01
      Audi A4 3.56 1998, Exhaust Clamp by Eberspaecher®. 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 your...
      # 7797024
    • (0 reviews)
      $11.81$9.45
      Audi A4 / A4 Quattro 1998, Exhaust Hanger by Eberspaecher®. Note: Middle Muffler and Front Mounting Position on Rear Muffler. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should...
      # 53347490
    • (0 reviews)
      $23.03$18.42
      Audi A4 1998, Exhaust Hanger by Vaico®. 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 your time and...
      # 8041901
    • (0 reviews)
      $5.39$4.31
      Audi A4 / A4 Quattro 3.56 1998, Exhaust Gasket by Vemo®. Note: Exhaust Manifold to Header Pipe. 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...
      # 7901421
    • (0 reviews)
      $509.23$407.38
      Audi A4 Quattro 90.3mm 1998, Muffler by Ansa®. Position: Center. Middle. 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...
      # 7771170
    • (0 reviews)
      $94.53from $75.62 - $146.90
      Universal 10 Series Delta Force Single Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 10 Series Race mufflers are a compact lightweight single chamber design that will give a noticeable sound reduction compared to open...
      # 898490
    • (0 reviews)
      $209.88from $167.90 - $267.60
      Universal 30 Series Delta Force™ 3-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These are the most powerful and the quietest professional race mufflers available. 5.00” & 6.00” thick case sizes for maximum power and...
      # 898450
    • (0 reviews)
      $132.48from $105.98 - $230.86
      Universal 40 Series Delta Force™ 2-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 40-Series mufflers offer a combination of maximum power and substantial dB-reduction compared to open headers. They are recommended for...
      # 898479
    • (0 reviews)
      $246.58$197.26
      Universal 60 Series Delta Force Stainless Steel Race Muffler by Flowmaster®, MODERATE SOUND, 4" Offset Inlet / 4" Offset Outlet, 22" Length. These are the most powerful and the quietest professional race mufflers available.
      # 3146020
    • (0 reviews)
      $390.89$312.71
      Universal Delta Force™ Aluminized Steel Low Profile Oval Tubing Race Muffler by Flowmaster®, Aggressive Sound, 3.50" Dual Inlet / 3.50" Dual Outlet, 2.75 Thick x 11" Wide x 25" Length. The low profile mufflers are Delta Flow™...
      # 898448
    • (1 reviews)
      $111.25from $89.00 - $141.66
      Universal Outlaw™ Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These mufflers are very small and lightweight. Attached directly to the collector they generally produce more power than open headers, while taking “the edge”...
      # 898456
    • (1 reviews)
      $236.09$188.87
      Universal Pro Series™ Stainless Steel Race Muffler with Turn Down by Flowmaster®, MODERATE SOUND, 6" Diameter x 16" Case Length. Laminar Flow Mufflers have applications in all forms of racing. The Cool Shell Technology makes...
      # 898465
    • (0 reviews)
      $234.83from $187.86 - $208.84
      Universal Scavenger Series Outlaw II Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing...
      # 23297627
    • (0 reviews)
      $274.15$219.32
      Universal Scavenger Series Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing applications. They...
      # 898468
    • (1 reviews)
      $112.49from $89.99 - $108.08
      Universal 40 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The 2-chamber design of this muffler, incorporating the patented Flowmaster Delta Flow...
      # 897054
    • (0 reviews)
      $108.85$87.08
      Universal 40 Series Original Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. This is the muffler that launched the success of Flowmaster. It is an aggressive sounding...
      # 897079
    • (0 reviews)
      $133.78from $107.02 - $125.92
      Universal 50 Series Delta Flow™ Muffler by Flowmaster®, MODERATE SOUND, 4" Thick x 9.75" Wide x 17" Case Length x 23" Overall Length. The 50 Series Delta Flow mufflers are designed for passenger cars. The sound characteristics...
      # 897086
    • (0 reviews)
      $174.45$139.56
      Universal 50 Series Delta Flow™ Slimline Muffler by Flowmaster®, MODERATE SOUND. The 50 Series Delta Flow Slimline mufflers are designed for passenger cars. The sound characteristics are moderate exterior sound level and minimal...
      # 897156
    • (0 reviews)
      $163.98$131.18
      Universal 60 Series Delta Flow™ Aluminized Steel Muffler by Flowmaster®, MILD SOUND, 2.25" Center Inlet / 2.25" Center Outlet, 5" Thick x 10" Wide x 13" Case Length x 19" Overall Length. The 60 Series increases horsepower and...
      # 897052
    • (0 reviews)
      $190.19$152.15
      Universal 70 Series Delta Flow™ Big Block Muffler by Flowmaster®, MILD SOUND, 5" Thick x 10" Wide x 22" Case Length x 28" Overall Length. The 70 Series Big Block II Muffler uses a longer case for increased volume and added...
      # 897109
    • (0 reviews)
      $183.63from $146.90 - $205.66
      Universal Pro Series™ Laminar Flow Muffler by Flowmaster®, MODERATE SOUND. PRO Laminar Flow mufflers have a patented core design that is characterized by efficient exhaust scavenging and minimized drone. They produce a rich, deep...
      # 897161
    • (5 reviews)
      $87.49from $69.99 - $73.44
      Universal Super 10 Series Delta Flow™ Stainless Steel Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 5.50" Case Length x 12.50" Overall Length. If you want to be arrested, you should mount this muffler on your...
      # 897126
    • (0 reviews)
      $131.15from $104.92 - $109.49
      Universal Super 40 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 5" Thick x 10" Wide x 13.50" Case Length x 19.50" Overall Length. The Super 40 Series Delta Flow Mufflers are developed from the Top Ten muffler...
      # 897132
    • (2 reviews)
      $104.88from $83.90 - $94.44
      Universal Super 44 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The Super 44 has the deepest, richest, most aggressive muscle tone of all 4” street...
      # 897136
    • (0 reviews)
      $137.73from $110.18 - $178.38
      Universal Super HP-2™ Stainless Steel Performance Muffler by Flowmaster®, 4" Thick x 5" Wide. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar...
      # 15943155



    Guides & Articles
    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...
    It has been a battle of the ages to make exhaust sound like it should. Having less bends or turns will not only improve the sound but also performance. A custom exhaust is always an option for the race inspired and spirited weekend warriors. Our manufactures offer everything needed to build a custom exhaust to your preference.
    Headers are installed because the stock exhaust manifolds usually flow poorly. An exhaust header has individual tubes for each exhaust port, allowing each exhaust pulse to flow unobstructed from the cylinder head. The tubes on headers are usually larger in diameter than the runners on an exhaust manifold and the tubes are mandrel bent for gradual radius bends.
    1998 Audi A4 Models
    • 1998 Audi A4 Avant Performance Exhaust Systems
    • 1998 Audi A4 Base Performance Exhaust Systems
    • 1998 Audi A4 Quattro Avant Performance Exhaust Systems
    • 1998 Audi A4 Quattro Base Performance Exhaust Systems