1999 Audi A4 Performance Exhaust Systems

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    • MagnaFlow® Street Series Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 20206391
      Audi A4 Quattro 1.8L 1999, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. MODERATE SOUND. Dual Rear Exit. 3" Tubing. 5" Height x 8" Width x 14" Length Mufflers. 3.5" Polished Stainless Tip. The Street Series...
      Moderate SoundDelivers More Horsepower
      $1,046.49
    • Borla® S-Type™ Stainless Steel Single Cat-Back Exhaust System
      (0 reviews)
      # 86041294
      Audi A4 Quattro 1.8L Standard (Manual) Transmission 1999, S-Type™ Stainless Steel Single Cat-Back Exhaust System by Borla®, AGGRESSIVE PLUS SOUND. Dual Left Rear Exit. 2.25" Tubing. 3.14" x 4.63" Inlet Dual Round Rolled Angle-Cut...
      Aggressive Plus SoundIncreased exhaust flow for better performance
      $847.99
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 22199319
      Audi A4 with TLEV Specification 1999, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $470.03 - $587.89
    • MagnaFlow® Direct Fit Federal Catalytic Converter
      (0 reviews)
      # 61586918
      Audi A4 / A4 Quattro 2.8L 1999, Direct Fit Federal Catalytic Converter by MagnaFlow®. 2" Inlet / 2" Outlet Diameter. 21.75" Width. 2" Tubing Diameter. Includes Gasket, O2 Sensor Ports. Without Air Tube. If your car needs...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $470.03
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 22198876
      Audi A4 / A4 Quattro 1.8L 1999, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. 7" Width. Includes Gaskets. If your car needs replacement, install one that will get you through the smog check and give you more...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $451.26
    • MagnaFlow® Direct Fit Federal Pre-OBDII Catalytic Converter
      (1 reviews)
      # 22198037
      Audi A4 / A4 Quattro 1.8L 1999, Direct Fit Federal Pre-OBDII Catalytic Converter by MagnaFlow®. 2" Inlet / 2" Outlet Diameter. 7.13" Width. 2.5" Tubing Diameter. Includes Gaskets, O2 Sensor Ports and Air Tube. If your car needs...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $362.13
    • PaceSetter® Stainless Steel Direct Fit Catalytic Converter
      (0 reviews)
      # 81958932
      Audi A4 1.8L 1999, Undercar Direct Fit Catalytic Converter by PaceSetter®. Stainless Steel. Custom Engineered to deliver maximum performance and efficiency from your engine with durability andease of installation.
      $298.05
    • Starla® Exhaust Pipe
      (0 reviews)
      # 7792263
      Audi A4 1.8 Standard 1999, 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...
      $121.69
    • Vibrant Performance® Exhaust Manifold Flange
      (0 reviews)
      # 78903443
      Audi A4 / A4 Quattro 1.8L 1999, Exhaust Manifold Flange by Vibrant Performance®.
      Made of High Quality MaterialsAvailable in different sizes
      $52.76 - $83.95
    • Genuine® Exhaust Manifold
      (0 reviews)
      # 8819979
      Audi A4 / A4 Quattro 1.8L 1999, 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...
      $494.36
    • Walker® CalCat™ Catalytic Converter
      (0 reviews)
      # 85225711
      Audi A4 1999, CalCat™ Catalytic Converter by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Body Material: Stainless Steel. Substrate Material: Ceramic. Walker offers complete coverage: direct-fit mufflers, converters,...
      $148.93 - $310.39
    • Walker® Ultra™ Round Catalytic Converter
      (0 reviews)
      # 86426702
      Audi A4 1.8L 1999, Ultra™ Round Catalytic Converter by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Body Shape: Round. Body Material: Stainless Steel. Substrate Material: Ceramic. This catalytic converter is constructed...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $85.93 - $225.05
    • Bosal® Catalytic Converter
      (0 reviews)
      # 36757480
      Audi A4 / A4 Quattro 1.8L 1999, Catalytic Converter by Bosal®. Includes O2 Sensor Port. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle...
      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
      $313.91
    • Bosal® Driver Side Catalytic Converter
      (0 reviews)
      # 20554856
      Audi A4 2.8L 1999, Driver Side Catalytic Converter by Bosal®. Includes Two O2 Sensor Ports. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle...
      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
      $243.57
    • Eastern® ECO CARB Direct Fit Catalytic Converter
      (0 reviews)
      # 73906490
      Audi A4 1999, ECO CARB Direct Fit Undercar Catalytic Converter by Eastern®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $298.96 - $315.84
    • Eastern® ECO II Universal Fit Catalytic Converter
      (0 reviews)
      # 17576415
      Audi A4 2.8L Under 8500 Lbs GVW Federal Emission 1999, ECO II Universal Fit Undercar Catalytic Converter by Eastern®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.60 - $67.93
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 81059104
      Audi A4 / A4 Quattro 1999, 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
      $264.60 - $357.00
    • AP Exhaust® 608 Series Universal Fit Catalytic Converter
      (0 reviews)
      # 81395947
      Audi A4 CARB Compliant / EPA Compliant 1999, 608 Series Universal Fit Catalytic Converter by AP Exhaust®. Three-Way No / Air OBDII By Design US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $89.29 - $94.45
    • AP Exhaust® Direct Fit Catalytic Converter
      (0 reviews)
      # 80124558
      Audi A4 CARB Compliant / EPA Compliant 1999, 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...
      Manufactured from high quality materialsDesign meet needs of OBDII equipped vehicles
      $283.82 - $289.91
    • Davico® Direct Fit Catalytic Converter
      (0 reviews)
      # 83034858
      Audi A4 1999, Direct Fit Catalytic Converter by Davico®. Gaskets Included. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $189.00 - $460.68
    • Walker® Quiet-Flow™ Stainless Steel Muffler Assembly
      (0 reviews)
      # 17724365
      Audi A4 1999, Quiet-Flow™ Stainless Steel Aluminized Muffler Assembly by Walker®. Inlet Configuration: Offset. Inlet Connection Type: Pipe Connection.
      $158.11 - $267.72
    • Bosal® Muffler
      (0 reviews)
      # 20554921
      Audi A4 1999, 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
      $118.94 - $262.02
    • Genuine® Muffler
      (0 reviews)
      # 8911786
      Audi A4 Quattro 2.8L 1999, 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...
      $351.04 - $529.21
    • Ansa® Muffler
      (0 reviews)
      # 80696080
      Audi A4 Quattro 1999, Muffler by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and hardware. ANSA makes...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $162.75 - $293.73
    • AP Exhaust® Challenge Series Muffler
      (0 reviews)
      # 80124555
      Audi A4 2.8L CARB Compliant / EPA Compliant 1999, Challenge Series Muffler by AP Exhaust®. Cross Section: 4.5" x 11". Body Shape: Oval. Overall Length: 36". Inlet Diameter: 2.5". Outlet Diameter: 2.25". Includes Inlet / Outlet...
      Limited Lifetime Warranty backed by AP Exhaust Products100% aluminized components
      $92.94
    • AP Exhaust® Muffler Welded Assembly
      (0 reviews)
      # 80124552
      Audi A4 Quattro 1999, Muffler Welded Assembly by AP Exhaust®. AP engineers design mufflers using state-of-the-art SolidWorks 3-D modeling programs resulting in rapid prototype and production implementation.
      Aluminized components for longer lifeOriginal equipment appearance and performance
      $147.80 - $250.42
    • Walker® Intermediate Pipe
      (0 reviews)
      # 18153325
      Audi A4 1.8L 1999, Stainless Steel Aluminized Intermediate Pipe by Walker®. Outlet Diameter: 2". Overall Length: 43.75". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: 3 Bolt Welded Flange. Outlet Connection...
      Made of High Quality Aluminized SteelCorrosion Resistant
      $92.26 - $96.49
    • Bosal® Front Exhaust Pipe
      (0 reviews)
      # 20554895
      Audi A4 1.8L 1999, 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
      $64.40 - $83.88
    • Ansa® Front Exhaust Pipe
      (0 reviews)
      # 80696077
      Audi A4 Quattro 1.8L 1999, Front Exhaust Pipe by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $81.37 - $84.95
    • Bosal® Rubber Mounting
      (0 reviews)
      # 20554870
      Audi A4 1999, 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
      $7.66
    • Ansa® Exhaust Clamp
      (1 reviews)
      # 80696070
      Audi A4 Quattro 1999, Exhaust Clamp by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and hardware. ANSA...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $2.06 - $22.95
    • Eberspaecher® Exhaust Clamp
      (0 reviews)
      # 7800633
      Audi A4 1999, 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 time...
      $18.08 - $22.09
    • Eberspaecher® Exhaust Hanger
      (0 reviews)
      # 53347490
      Audi A4 / A4 Quattro 1999, 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...
      $9.53
    • Vaico® Exhaust Hanger
      (0 reviews)
      # 8041901
      Audi A4 1999, 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...
      $14.67 - $18.56
    • AP Exhaust® Extra Heavy Duty Clamp
      (0 reviews)
      # 80392494
      Audi A4 Quattro 2.8L 1999, Extra Heavy Duty Clamp by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality....
      Made from first-rate materialsEnsures outstanding durability
      $9.53
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 40584393
      Audi A4 / A4 Quattro 1999, 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
      $7.04 - $15.08
    • Bosal® Pipe Connector
      (0 reviews)
      # 20554932
      Audi A4 1999, 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
      $16.20 - $21.24
    • Walker® 3 Bolt Exhaust Gasket
      (0 reviews)
      # 18135639
      Audi A4 / A4 Quattro 1.8L 1999, 3 Bolt Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Thickness: 0.058". Bolt Hole Diameter: 0.34". Port Dimensions: 2.27" Length x 2.27" Width. Bolt Hole Center to Center...
      Makes installation quick and easyOptimal OE-style fit and quality
      $6.26
    • Bosal® Exhaust Flange Gasket
      (0 reviews)
      # 20554885
      Audi A4 1.8L 1999, Exhaust Flange Gasket 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
      $4.72 - $10.04
    • Fel-Pro® Exhaust Pipe Flange Gasket
      (0 reviews)
      # 19064211
      Audi A4 / A4 Quattro 1999, 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,...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $7.99
    • Beck Arnley® Exhaust Manifold Gasket
      (0 reviews)
      # 35821208
      Audi A4 / A4 Quattro 1999, 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...
      OE quality products from top original equipmentTop quality materials
      $10.42 - $11.27
    • AJUSA® Exhaust Manifold Gasket
      (0 reviews)
      # 23005341
      Audi A4 / A4 Quattro 1.8L 1999, 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
      $7.00
    • Victor Reinz® Exhaust Manifold Gasket
      (0 reviews)
      # 24054945
      Audi A4 / A4 Quattro 1999, 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...
      $8.38 - $18.18
    • Vemo® Exhaust Gasket
      (0 reviews)
      # 7901422
      Audi A4 / A4 Quattro 2.8L 1999, 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...
      $4.05
    • Bosal® Exhaust Washer
      (0 reviews)
      # 20553868
      Audi A4 1.8L 1999, 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
      $0.53
    • Bosal® Manifold Bolt
      (0 reviews)
      # 20553908
      Audi A4 1.8L 1999, 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
      $3.16
    • Bosal® Manifold Nut
      (0 reviews)
      # 20553740
      Audi A4 / A4 Quattro 1.8L 1999, 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
      $3.34
    • Febi® Exhaust Nut
      (0 reviews)
      # 8392524
      Audi A4 / A4 Quattro 2.8L 1999, 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, both for safety...
      $0.88
    • Genuine® Exhaust Stud
      (0 reviews)
      # 8820638
      Audi A4 / A4 Quattro 1.8L 1999, Exhaust Stud by Genuine®. Turbocharger To Exhaust Manifold. Mounting Studs 10X28Mm. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs should not be put...
      $2.27
    • PaceSetter® Stainless Steel Direct Fit CA-Legal Catalytic Converter
      (0 reviews)
      # 81958930
      Audi A4 1.8L 1999, Undercar Direct Fit CA-Legal Catalytic Converter by PaceSetter®. Stainless Steel. Custom Engineered to deliver maximum performance and efficiency from your engine with durability andease of installation.
      $929.49
    • Vibrant Performance® GESI ® High Output Catalytic Converters
      (0 reviews)
      # 78902206
      Universal GESI ® High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance and Global Emissions Systems Inc. (GESi®) have teamed up to supply a series of OBD2 (1996 and newer) high flow Catalytic Converters...
      EPA certified for use on OBD2 vehicles (1996 and newer) in jurisdictionswhere the installation of Universal Catalytic Converters is still permitted
      $335.21 - $448.35
    • Vibrant Performance® High Output Catalytic Converters
      (0 reviews)
      # 78902217
      Universal High Output Catalytic Converters by Vibrant Performance®. Vibrant Performance Metal or Ceramic Core Catalytic Converters are made entirely of Stainless Steel and feature a Monolith that is far more durable and capable...
      T304 Stainless Steel ConstructionThese Converters are covered by a 5 year / 50,000 mile warranty
      $75.76 - $109.10
    • Stainless Works® 304 SS High-Flow Catalytic Converter
      (0 reviews)
      # 83115043
      Universal 304 SS High-Flow Catalytic Converter by Stainless Works®. This superior product is made from high-grade stainless steel to ensure excellent quality and maximum resistance to corrosion. Engineered with careful attention to...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $184.50
    • Dynatech® PowerCat Stainless Steel Catalytic Converter
      (0 reviews)
      # 84198005
      Universal PowerCat Stainless Steel Catalytic Converter by Dynatech®. 1 Piece. The Dynatech PowerCAT catalytic convertor uses the latest technology in catalytic convertor design. Utilizing a Premium Metallic Substrate internal...
      $174.99
    • Flowmaster® 10 Series Delta Force Single Chamber Race Muffler
      (0 reviews)
      # 898490
      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...
      Race Proven TechnologyNoticeable Sound Reduction Compared to Open Headers
      $92.92 - $151.28
    • Flowmaster® 30 Series Delta Force™ 3-Chamber Race Muffler
      (0 reviews)
      # 898450
      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...
      Race Proven TechnologyDelta Force Technology for Maximum Torque and Power
      $124.40 - $275.60
    • Flowmaster® 40 Series Delta Flow™ Muffler
      (2 reviews)
      # 897054
      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...
      Stainless Steel ConstructionDyno Tuned For Maximum Performance
      $89.70 - $111.31
    • Flowmaster® 40 Series Delta Force™ 2-Chamber Race Muffler
      (0 reviews)
      # 898479
      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...
      Race Proven TechnologyDelta Force Technology for Maximum Torque and Power
      $109.13 - $237.75
    • Flowmaster® 40 Series Original Muffler
      (1 reviews)
      # 897079
      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...
      Stainless Steel ConstructionDyno Tuned For Maximum Performance
      $83.76 - $165.34
    • Flowmaster® 50 Series Delta Flow™ Slimline Muffler
      (0 reviews)
      # 897156
      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...
      Stainless Steel ConstructionDyno Tuned For Maximum Performance
      $134.99 - $139.56




    Guides & Articles

    • Performance Parts
      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 Parts
      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 Parts
      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?
    • Performance Parts
      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.

    Popular Products

    1999 Audi A4 Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 reviews
    5 of 5
    Catalyst
    The product is clean and works doesn't take long depending where u are and worth buying what u need.
    LPosted by Luis E (Aurora, IL) /
    2002 Audi A4
    Was this review helpful for you? Yes
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