Featured Brands

Give your Audi A4 a boost of power with a custom exhaust system. Custom exhausts are readily available at CARiD, one of the most reliable auto parts dealers in the country. The remarkable thing about CARiD exhausts for the A4 is that they are specifically designed to increase engine performance. CARiD stocks a wide variety of A4 exhausts that you can choose from but among the exhaust systems you cannot go wrong with is the Audi A4 MagnaFlow Cat-Back system. This particular exhaust boosts horsepower and torque levels by up to 23hp and 37 Nm respectively, making your ride feel more powerful than before. Other good options you may want to consider are the Borla Stainless Steel exhaust, Gibson exhaust, and AFE Match Force XP Cat-Back System for the A4.

A common factor in all A4 custom exhausts is that they are slightly larger than the A4 stock exhaust. Their wide diameter enhances high velocity of exhaust gases so that burned gases escape from the exhaust system faster than they do in a stock exhaust, leaving enough room for the engine to take in as much fresh air as is needed and generate more power as a result. Custom A4 exhausts also give a better note so that in place of a constant drone your car gives a throaty growl, the kind that is associated with high performance cars. If you are concerned that you may not find a fitting exhaust for your A4 model, have no worry. CARiD has in stock aftermarket exhaust systems for all Audi A4 models, from the early 1997 A4 to the present-day 2013 model. You will find numerous exhausts that perfectly match your A4’s specifications. All you will be needed to do is choose your preferred exhaust system brand.

Show items:
Sort by:
    • (6 reviews)
      # sp109
      Mach Force XP Exhaust System by aFe®. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Exhaust System. aFe dyno tests every system for maximum...
      $359.00 - $4,499.00
    • (0 reviews)
      # sp119264
      Exhaust System by Torxe®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
      $150.00 - $690.00
    • (44 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check. The Direct Fit Catalytic Converter is available in Pre-OBD II, OBD II, and OEM Grade OBD II configurations.
      $79.39 - $3,863.64
    • (9 reviews)
      # sp114642
      Direct Fit OEM Grade Catalytic Converter by Magnaflow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace...
      $148.97 - $3,460.20
    • (3 reviews)
      # sp597
      Sport Series Exhaust System by MagnaFlow®. The Sport System has an aggressive and sporty performance tone. It is perfect for the smaller displacement performance engines.
      $597.36 - $2,800.09
    • (52 reviews)
      # sp17449
      Exhaust System by MagnaFlow®. These premium line exhaust systems for diesels with particulate filters include mandrel-bent stainless steel tubing, 100% stainless steel mufflers, optional muffler delete pipes, band clamps, and MagnaFlow...
      $235.31 - $2,612.93
    • (8 reviews)
      # sp599
      Touring Series Exhaust System by MagnaFlow®. The Touring Series exhaust systems are tuned for everyday driving, with a deep and mellow exhaust note of true performance character but at a decibel level and tone that does not get tiring...
      $467.48 - $2,612.93
    • (0 reviews)
      # sp119262
      Exhaust System by J2 Engineering®. Maximize your horsepower output and torque with J2 Engineering. Designed to ensure an efficient path for exhaust gases to escape, this product will give you an increase in performance and power you...
      Designed to enhance the efficiency of your exhaust systemBuilt to improve exhaust flow and reduce backpressure
      $337.50 - $700.00
    • (0 reviews)
      # sp124108
      Downpipe-Back Performance Exhaust by AWE Tuning®. AWE Tuning exhausts have earned praise from owners and the press alike, due to their unique "Jekyll and Hyde" personality. AWE Tuning engineers spend considerable time and effort during...
      304 Stainless Steel ConstructionAmazing performance
      $895.00 - $1,245.00
    • (0 reviews)
      # sp124109
      Exhaust System (Downpipe Exhaust) by AWE Tuning®. AWE Tuning knew the tone and volume had to be spot on. It needed to deliver an exhilarating wail at full throttle yet be quiet and civil during part throttle, around town driving....
      Increased pipe diameter to 2.5" to better let the engine exhaleStrategic elimination of mufflers to release tone when uncorked
      $1,195.00 - $2,245.00
    • (0 reviews)
      # sp124117
      Performance Exhaust Systems by AWE Tuning®. AWE Tuning Performance Exhaust project can be touted as one of the most comprehensive and intensive research and development initiatives in our exhaust collection. Hundreds of hours of...
      Crafted from 304 Stainless SteelEstimated max power gains of 8HP and 8TQ at the crank
      $545.00 - $4,995.00
    • (0 reviews)
      # sp124120
      SwitchPath™ Exhaust by AWE Tuning®. The SwitchPath™ Exhaust sets a new standard. Beyond the hand crafted detail that is standard for every AWE Tuning Performance Exhaust, this one packs a little something special. In other words,...
      Designed and manufactured in-house at AWE TuningCrafted from T304 stainless steel
      $1,395.00 - $5,795.00
    • (4 reviews)
      # sp124121
      Touring Edition Exhaust System by AWE Tuning®. A grin-worthy soundtrack coupled with signature AWE Tuning performance and quality honed over decades of supercar engineering. Let’s get ready to motor. Harder.
      Max gains of 10 Hp and 19 ft-lbs of torque to the crankSophisticated Touring Edition
      $595.00 - $4,995.00
    • (2 reviews)
      # sp124122
      Track Edition Exhaust System by AWE Tuning®. Sophisticated sound and impressive performance. Featuring a straight-through design, the Track Edition Exhaust revamps the attitude entirely, providing a more pronounced, aggressive tone in...
      Max gains of 7 Hp and 7 Ft/lbs of torque to the crankEngineered, designed, and manufactured in-house at AWE Tuning
      $545.00 - $3,995.00
    • (0 reviews)
      # sp22177
      Classic Cat-Back Exhaust System by Thermal R&D®. Thermal CL exhaust systems are designed for bolt-in applications and have a deep, throaty sound. CL systems are tuned towards the upper mid-range and top end and are recommended for the...
      $292.27 - $985.63
    • (0 reviews)
      # sp110056
      R&D Exhaust System by Thermal®. This Thermal R&D 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 highest level of quality. Meticulously engineered...
      $513.77 - $1,113.17
    • (0 reviews)
      # sp105124
      Standard Grade Direct Fit Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance, and...
      $160.80 - $1,066.25
    • (4 reviews)
      # sp96188
      Universal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting...
      $69.27 - $466.66
    • (0 reviews)
      # sp37135
      Stainless Steel Downpipes by Corsa®. The configuration of Downpipes improves exhaust scavenging for increased power and torque, and improves sound.
      Downpipe High Flow Design for Better Sound and Exhaust ScavengingMade in Stainless Steel to Ensure Never Changing Good Looks
      $125.00 - $875.00
    • (1 review)
      # sp124114
      Performance Downpipe by AWE Tuning®. As with all AWE Tuning ® exhaust products, each weld is hand finished internally, only butt-welded junctions are used, and flange openings are size matched to their ports, all to produce the...
      Fully mandrel bent tubingThick .065" wall T304 stainless steel tubing
      $495.00 - $3,295.00
    • (0 reviews)
      # sp12958
      Exhaust Manifold Flange by Vibrant Performance®. 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 performance, is will more than just meet...
      Made of High Quality MaterialsAvailable in different sizes
      $39.95 - $389.95
    • (2 reviews)
      # sp27211
      Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors help. You can find...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $16.86 - $238.27
    • (0 reviews)
      # sp26976
      Oxygen Sensor 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, you get...
      Makes installation quick and easyOptimal OE-style fit and quality
      $25.52 - $289.98
    • (0 reviews)
      # sp5756
      Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most innovative oxygen...
      OE connectors and wire lengths within 3" inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.60 - $201.38
    • (1 review)
      # sp27974
      Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all channels of...
      One-piece laser welded body for maximum protection and precise operation maintaining sensor integrityDual internal talc seal makes Our Oxygen sensors last longer
      $11.36 - $194.89
    • (0 reviews)
      # sp119178
      Universal Oxygen Sensor by Bosch®. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why checking for, and possibly replacing, a worn-out...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $13.18 - $56.45
    • (2 reviews)
      # sp92988
      Wideband Oxygen Sensor by Bosch®. Invented for life, Bosch car parts are a rare combination of high quality, dependable service, and a reasonable price. This sensor utilizes a sophisticated sensing element enabling it to produce a...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $42.30 - $311.98
    • (3 reviews)
      # sp94914
      Air Fuel Ratio Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of the...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $37.36 - $384.44
    • (14 reviews)
      # sp99082
      OE Connector Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.73 - $212.14
    • (0 reviews)
      # sp118924
      Universal Fit Oxygen Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $11.21 - $69.15

    Guides & Articles

    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Automotive Tools
      August 30, 2017
      What Special Tools Are Available For Exhaust...
      Exhaust work can be challenging. Old parts are usually corroded and difficult to separate, and new ones sometimes need minor fitment adjustments during installation....
      by Timothy Zahl
    • Performance Exhaust Systems
      May 17, 2016
      Here's A 'Tip': Exhaust Tips Are An Easy Way To...
      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...
      by Michael Grayen
    • Performance Exhaust Systems
      August 18, 2015
      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...
      by Michael Grayen
    • Performance Exhaust Systems
      August 18, 2015
      Are X-pipes and H-pipes Better Than Straight...
      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....
      by Timothy Zahl
    • Performance Exhaust Systems
      August 17, 2015
      Power, Sound, Looks | Can I Have It All With a...
      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...
      by Timothy Zahl
    • Bed Accessories
      April 17, 2015
      Pickup Truck Cab And Bed Sizes Are Important...
      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...
      by Timothy Zahl
    • Replacement Exhaust Parts
      August 01, 2014
      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...
      by Michael Grayen

    Popular Products

    Audi A4 Performance Exhaust Systems Reviews

    Average rating:  5  5 - 5 reviews
    5 of 5
    Exhaust Pipe Connector
    These clamps made the project easy.
    GPosted by Gordon (Chagrin Falls, OH) / June 11, 2017
    1998 Audi A4
    Was this review helpful for you? Yes
    View More

    Related Audi A4 Pages
    Audi A4 Models

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.