2004 Audi A4 Exhaust Systems
Select Your Submodel
-
Walker®Stainless Steel Butt Joint Band Exhaust ClampAudi A4 1.8L 2004, Stainless Steel Butt Joint Band Exhaust 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...Makes installation quick and easyOptimal OE-style fit and quality$26.94 - $28.29 - HJS®Triangle Catalytic Converter GasketAudi A4 1.8L 2004, Triangle Catalytic Converter Gasket by HJS®. 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...High quality at an affordable priceExpertly made from premium materials$4.60 - $6.35
- Genuine®Exhaust NutAudi A4 2004, Exhaust Nut by Genuine®. If your exhaust parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our...Designed to restore your vehicle’s exhaust systemGenuine OE replacement parts from the OE manufacturer$1.88 - $3.38
- BRExhaust®Exhaust ClampAudi A4 Quattro 2004, Exhaust Clamp by BRExhaust®. Location: Center to Rear Muffler. BRExhaust has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and...Constructed for a hassle-free exhaust repairEnsures a precise fit$2.23 - $2.34
- Walker®3-Bolt Catalytic Converter GasketAudi A4 1.8L 2004, 3-Bolt Catalytic Converter Gasket 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...Makes installation quick and easyOptimal OE-style fit and quality$6.56
- Febi®Copper Shouldered Exhaust NutAudi A4 3.0L 2004, Copper Shouldered Exhaust Nut by Febi®. Hex nut with flange. Shouldered - Self Locking. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...High quality at an affordable priceExpertly made from premium materials$1.50
- Elring®Exhaust Manifold to Catalytic Converter Exhaust GasketAudi A4 / A4 Quattro 2004, Exhaust Manifold to Catalytic Converter Exhaust Gasket by Elring®. 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...OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price$7.27 - $9.34
- Bosch®Premium Wideband Oxygen SensorAudi A4 / A4 Quattro 2004, Premium Wideband Oxygen Sensor by Bosch®. Position: Upstream. This sensor utilizes a sophisticated sensing element enabling it to produce a precise output in proportion to the air/fuel ratio. Wideband sensors...Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor$102.82 - $131.58
- TRQ®O2 Oxygen SensorAudi A4 / A4 Quattro 2004, O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$34.15$35.95Save 5%
- Walker Products®Oxygen SensorAudi A4 2004, Oxygen Sensor by Walker Products®. 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...High quality at an affordable priceExpertly made from premium materials$68.87 - $117.86
- Bosch®Narrow-band Oxygen SensorAudi A4 / A4 Quattro 2004, Narrow-band Oxygen Sensor by Bosch®. Position: Downstream. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to...OE-EquivalentOE Style connectors and wire lengths$50.66
- Denso®Oxygen SensorAudi A4 / A4 Quattro 1.8L / 3.0L Gas 2004, Oxygen Sensor by Denso®. Position: Downstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$86.96
- Bosch®Premium Oxygen SensorAudi A4 2004, Premium Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is equally...OE Identical ConnectorCompact Design$83.19 - $87.03
- Denso®Air Fuel Ratio SensorAudi A4 / A4 Quattro 2004, Air Fuel Ratio Sensor by Denso®. Position: Upstream. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products...Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies$135.94 - $139.45
- Walker Products®Premium Oxygen SensorAudi A4 / A4 Quattro 2004, Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements....Improved Engine Response & PerformanceLower Emissions$82.14
- NTK®Oxygen SensorAudi A4 / A4 Quattro 2004, Oxygen Sensor by NTK®. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor element then sends voltage...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$77.94
- NTK®Air Fuel Ratio SensorAudi A4 / A4 Quattro 2004, Air Fuel Ratio Sensor by NTK®. Air fuel ratio sensors utilize a sophisticated sensing element that enables them to produce a precise output in proportion to the air fuel ratio. AFR sensors provide the ECU with...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$110.11 - $127.39
- Facet®Oxygen SensorAudi A4 2004, Oxygen Sensor by Facet®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...The reliable goods for increase of reliability of the carQuality equal, if not superior, to that of the original components$46.74
- Walker Products®Wideband Premium Oxygen SensorAudi A4 / A4 Quattro 2004, Wideband Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...High quality at an affordable priceExpertly made from premium materials$112.13 - $113.24
- Audi OEEmission System - Emission Components (1.8L)Audi A4 1.8L 2004, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
- Audi OEEmission System - Emission Components (1.8L)Audi A4 1.8L 2004, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$3.64 - $1,041.50
- Audi OEEmission System - Emission Components (3.0L)Audi A4 3.0L 2004, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option to go if you...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
- Audi OEEmission System - Emission Components (3.0L)Audi A4 / A4 Quattro 3.0L 2004, Emission System - Emission Components by Audi OE. Keep your Audi looking showroom-new and running at its best with top-grade Audi OE parts. Genuine in quality, fit, and finish, they’re the finest option...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$12.59 - $1,041.50
- Genuine®Oxygen SensorAudi A4 2004, Oxygen Sensor by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials using...Made with precision and quality in mindDesigned to meet your specific needs$32.22
- Delphi®Oxygen SensorAudi A4 / A4 Quattro 1.8L / 3.0L Gas 2004, Oxygen Sensor by Delphi®. Position: Rear. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers...Resists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long lifePatented sensors construction and design$86.91
- Vemo®Oxygen SensorAudi A4 2004, Oxygen Sensor by Vemo®. 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...High quality at an affordable priceExpertly made from premium materials$63.00 - $250.03
- WVE®Oxygen Sensor RelayAudi A4 / A4 Quattro 2004, Oxygen Sensor Relay by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$5.02
- AP Exhaust®Enforcer Series Aluminized Steel Round Glass Pack Exhaust MufflerUniversal Enforcer Series Aluminized Steel Round Glass Pack Exhaust Muffler by AP Exhaust®. Muffler Structure: Straight-through. Muffler Configuration: Center - Center. Today’s exhaust performance market continues to cover a broad...Aluminized materials for superior corrosion protectionIdeal for the economy buyer$13.46 - $38.58
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Dorman®Brass Exhaust Manifold Hardware KitBrass Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running its best.Direct replacement for a proper fitBuilt to Last$5.63
Shop By Service Type
Popular Products
2004 Audi A4 Exhaust Reviews
2 reviews
Good Product.
Ansa® AU21031 - Exhaust Intermediate PipePosted by Nathan (Leander, TX) / January 03, 20192004 Audi A4
2004 Audi A4 Models
Popular Searches