2005 Audi S4 Emission Control Parts
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Vemo®Secondary Air Pump System ValveAudi S4 2005, Secondary Air Pump System Valve by Vemo®. Grade: Aftermarket. Vemo products are made by high-quality materials and undergo strict quality tests. They are, thereby, the perfect alternative to the original part.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$172.99 - Standard®Intermotor™ Secondary Air Injection Bypass ValveAudi S4 2005, Intermotor™ Secondary Air Injection Bypass Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$230.68
- Standard®Intermotor™ Secondary Air Injection Pump Check ValveAudi S4 2005, Intermotor™ Secondary Air Injection Pump Check Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...Made with precision and quality in mindDesigned to meet your specific needs$12.12
- Genuine®Leak Detection PumpAudi S4 2005, Leak Detection Pump 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$394.87 - $826.92
- SKP®Vapor Canister Purge ValveAudi S4 2005, Vapor Canister Purge Valve by SKP®. 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...Made with precision and quality in mindDesigned to meet your specific needs$20.63
- WVE®Oxygen Sensor RelayAudi S4 2005, 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 emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$5.02
- Mahle®Secondary Air Injection Pump GasketAudi S4 2005, Secondary Air Injection Pump Gasket by Mahle®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.95
- Genuine®EGR Valve Adapter GasketAudi S4 2005, EGR Valve Adapter Gasket 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$25.69
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyAudi S4 2005, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. With 2 O2 Sensor Ports. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged...$588.32 - $706.98
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic ConverterAudi S4 2005, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$178.00
- MagnaFlow®OBDII Universal Fit Round Body Catalytic ConverterAudi S4 with LEV Standard / with LEV1 Standard 2005, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet...$421.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic ConverterAudi S4 2005, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet Diameter:...$194.00
- MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterAudi S4 Automatic Transmission 2005, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter:...$933.00 - $964.00
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterAudi S4 2005, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust...$980.00 - $1,159.00
- Davico®Universal Fit Catalytic ConverterAudi S4 2005, Catalytic Converter by Davico®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Inlet Diameter: 2". Catalytic Converter Overall Length: 15". This Universal fit catalytic converter by Davico will be a...$122.58
- Audi OEExhaust System - Exhaust ComponentsAudi S4 2005, Exhaust System - Exhaust 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 want to...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$16.59 - $3,538.94
- Audi OEExhaust System - Exhaust Components (Base / Avant B6 Body Code)Audi S4 B6 Body Code 2005, Exhaust System - Exhaust 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$16.59 - $3,538.94
- Audi OEExhaust System - Exhaust Components (Base / Avant)Audi S4 Base / Avant 2005, Exhaust System - Exhaust 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...Genuine OE replacement for your specific Audi modelDesigned to bring your vehicle back to its pristine condition$16.59 - $3,538.94
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. 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...$12.39 - $14.91
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance 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....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. 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...Made with precision and quality in mindDesigned to meet your specific needs$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. 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...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$9.61 - $11.35
- 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
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$111.92 - $330.87
- Davico®OBDII Universal Fit Catalytic ConverterUniversal OBDII Catalytic Converter by Davico®. Converter Configuration: Universal Fit. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...$115.32 - $765.46
- CATCO®Universal Fit Catalytic ConverterUniversal Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Without Air Tube. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the...$105.61 - $188.45
- AP Exhaust®608 Series Universal Fit Catalytic ConverterUniversal 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$104.68 - $415.87
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
- AP Exhaust®Medium Duty Universal Fit Oval Body Catalytic ConverterUniversal Medium Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Single Air Tube. With 1 Center O2 Sensor Port. Catalytic Converter Overall Length: 17"....$140.56
Shop By Service Type
- Oxygen Sensor Replacement
- Air Pump Check and Diverter Valve Replacement
- Canister Purge Solenoid Replacement
- Air Pump Check Valve Replacement
- Positive Crankcase Ventilation (PCV) Valve Replacement
- Fuel Evaporative Canister Replacement
- Air Injection System Control Valve Replacement
- Secondary Air Injection System Air Bypass Valve Replacement
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