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The Alero is the Oldsmobile's effort in the compact car class, produced in 1999-2004. This front-wheel drive car was available as a sedan or a coupé in three trim levels, with two engines – 2.4-liter four-cylinder and a 3.4-liter V6, a 2.2-liter Ecotec being offered for later years. The transmission was a 4-speed automatic, while a 5-speed manual could come with an inline four. Featuring fully independent MacPherson suspension and the 4-wheel ABS disk brakes, the Alero could provide quite an entertaining ride. The sleek and streamlined exterior design also contributed to its image of a sporty car, while a decent convenience feature list and 14.6 cubic feet of trunk space catered for the owners' more pragmatic needs.

Take a look at our stock of aftermarket exhaust systems for your Alero, crafted from high-quality stainless steel to provide maximum durability and ultimate performance. We at CARiD have selected the finest items by famous exhaust system manufacturers, designed to enhance the gas flow and give the car's engine a serious boost in power, all while increasing its efficiency and fuel economy. And, of course, spicing the Alero's looks with some polished exhaust tips and the throaty engine sound – the CARiD store is always here to improve your driving experience.

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    • (15 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $193.34 - $1,748.68
    • (9 reviews)
      # sp96181
      Direct Fit OEM Grade 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 is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $148.97 - $3,460.20
    • (29 reviews)
      # sp7280
      Direct Fit Pre-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 will directly replace the factory unit, with...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $79.39 - $1,057.88
    • (13 reviews)
      # sp7124
      220 Series Stainless Steel Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products, to deliver the...
      Meets or exceeds all USEPA 49-state requirementsStainless Steel shells
      $102.70 - $971.62
    • (18 reviews)
      # sp95451
      Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products, to deliver the best possible performance....
      Exceed all federal emission standardsStainless Steel shells
      $102.70 - $1,101.06
    • (2 reviews)
      # sp17201
      Monza™ Stainless Steel Performance Exhaust System by PaceSetter®. The exhaust flow of an engine has a direct effect on its performance. MONZA™ Performance Exhaust Systems utilize the right combination of larger than-stock,...
      Each system uses corrosion-resistant aluminized steelFeatures chrome-plated T304 stainless steel MONZA Premium Exhaust Tips
      $225.70 - $460.73
    • (0 reviews)
      # sp105124
      Standard Grade 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 are...
      Made of High Quality Stainless SteelImprove Torque and Throttle Response
      $160.80 - $1,066.25
    • (3 reviews)
      # sp17200
      Exhaust Header by PaceSetter®. Mild Steel Tubing. Manufactured using mandrel-bent, 16-gauge mild steel tubing and port-matched, CNC-machined, 3/8"-thick head flanges. They are designed for the best combination of ease of...
      Mandrel-Bent 16 Gauge Mild Steel TubingTubes Enter Collector In Proper Firing
      $174.51 - $654.04
    • (3 reviews)
      # sp96188
      Universal Fit 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 universal fit converter will require some fabrication to be...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $69.27 - $466.66
    • (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...
      Made of High Quality MaterialsAvailable in different sizes
      $39.95 - $389.95
    • (0 reviews)
      # sp110044
      Metal with Integrated Heat Shield Gasket Set by Magnum Gasket®. You'd better be ready to take the heat if you're going to seal an exhaust manifold, where temperatures can often exceed 1,000°F. You can count on Magnum to offer the...
      Made of High Quality MaterialsThe best combination of steel layers and high-temp gasket materials
      $15.87
    • (1 review)
      # sp46872
      Vibe-Lock Header Bolt Kit by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest technology,perfect for...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $14.91 - $186.35
    • (0 reviews)
      # sp107342
      O2 Extension Wire by JBA®. 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...
      Built to match your exact requirementsHigh quality you can rely on
      $39.59
    • (25 reviews)
      # sp4409
      Exhaust 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 choose Walker accessories, you...
      Makes installation quick and easyOptimal OE-style fit and quality
      $1.00 - $199.00
    • (0 reviews)
      # sp104163
      Heavy Duty U-Bolt 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $0.91 - $208.50
    • (1 review)
      # sp27192
      GM Original Equipment™ 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 GM OE Oxygen Sensor help.
      ACDelco GM OE Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Detects oxygen content in the exhaust gases.
      $14.10 - $216.69
    • (0 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...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Customers can receive better gas mileage with a properly working oxygen sensor.
      $18.36 - $241.79
    • (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...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.24 - $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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $11.36 - $194.89
    • (1 review)
      # sp99083
      Oxygen Sensor by Bosch®. 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 which oxygen sensors are subjected. Each element is...
      OE-EquivalentOE Style connectors and wire lengths
      $8.57 - $146.47
    • (0 reviews)
      # sp110090
      Universal O2 Sensor by Bosch®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $12.86 - $103.79
    • (11 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,...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.69 - $512.39
    • (0 reviews)
      # sp107209
      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 the...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $20.11 - $363.90
    • (12 reviews)
      # sp5156
      Oxygen Sensor by NTK®. This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality material and extensively tested...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $12.37 - $263.78
    • (3 reviews)
      # sp99297
      Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous testing...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $9.71 - $272.38
    • (1 review)
      # sp101095
      Exhaust 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. This AP Exhaust Technologies product...
      Made from first-rate materialsEnsures outstanding durability
      $1.23 - $7.94
    • (1 review)
      # sp93975
      Exhaust Gasket 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. This AP Exhaust Technologies...
      Made from first-rate materialsEnsures outstanding durability
      $0.82 - $78.80
    • (1 review)
      # sp93989
      Hanger 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. This AP Exhaust Technologies product...
      Made from first-rate materialsEnsures outstanding durability
      $1.31 - $13.25
    • (0 reviews)
      # sp93904
      GM Original Equipment Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.48 - $15.74
    • (0 reviews)
      # sp4472
      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, the gaskets meet specific...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $3.09 - $88.76
    • (1 review)
      # sp5611
      Exhaust Manifold Gasket Set by Victor Reinz®. 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
      $0.92 - $79.69
    • (1 review)
      # sp103872
      Exhaust Manifold Gaskets by Victor Reinz®. 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
      $0.92 - $79.69
    • (0 reviews)
      # sp5607
      Exhaust Seal Ring by Victor Reinz®. 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
      $1.42 - $14.31
    • (0 reviews)
      # sp109736
      Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. 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
      $3.72 - $89.51
    • (0 reviews)
      # sp41620
      Exhaust Manifold Gasket by Mahle®. 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
      $8.93 - $19.17
    • (1 review)
      # sp109746
      Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide you with...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $1.60 - $60.37
    • (0 reviews)
      # sp5612
      Catalytic Converter Gasket by Victor Reinz®. 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
      $1.70 - $38.99
    • (5 reviews)
      # sp4621
      Exhaust Flange Gasket by Bosal®. Bosal works closely with OEM's across the globe to develop customer tailored solutions. With a focus on every aspect of the customer's needs, from product design to location of manufacture, Bosal's...
      Engineered to provide excellent exhaust system managementBuilt to OEM specifications
      $0.98 - $25.15
    • (1 review)
      # sp4473
      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, the gaskets meet specific...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $0.98 - $30.35
    • (0 reviews)
      # sp106488
      Exhaust Flange Stud and Nut by Dorman®. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for replacing your manifold. Save time and energy by having the right hardware on hand when you need it.
      Direct replacement for a proper fit every timeDurable steel construction
      $4.49 - $19.15
    • (0 reviews)
      # sp27193
      GM Original Equipment™ Oxygen Sensor Connector 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 Oxygen Sensors help....
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $10.02 - $77.87
    • (0 reviews)
      # sp27212
      Professional™ Oxygen Sensor Connector 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...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Customers can receive better gas mileage with a properly working oxygen sensor.
      $6.10 - $43.13
    • (0 reviews)
      # sp107220
      Oxygen Sensor Connector by Dorman®. Dorman offers a comprehensive line of Oxygen Sensor Connectors for a wide range of applications. All Dorman Oxygen Sensor Connectors are constructed of high-quality materials for long-lasting...
      No special tools required for installationEasy to install
      $7.84 - $28.93
    • (0 reviews)
      # sp27975
      Oxygen Sensor Connector 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...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $14.71 - $56.39
    • (0 reviews)
      # sp110014
      Flex Tube by Jones Exhaust®. Thoroughly engineered to perform and outperform any competition, these premium exhaust pipes by Jones Exhaust are a must for those who want to get the most out of their vehicle. These exhaust pipes are...
      High quality at an affordable priceExpertly made from premium materials
      $28.24 - $47.29
    • (1 review)
      # 285612371
      Universal 304 SS Chambered Round Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 30". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $166.25
    • (1 review)
      # 285612429
      Universal 304 SS Rat Trap Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 360335633
      Universal 304 SS Round Mill Exhaust Muffler by Stainless Works®. Muffler Overall Length: 5". Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $118.75 - $157.70
    • (1 review)
      # 285612569
      Universal 304 SS Round Vintage Mill Exhaust Muffler by Stainless Works®. Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s construction-the bodies, cores, and...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 285612455
      Universal 304 SS Smooth Tube Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $152.00
    • (1 review)
      # 285612487
      Universal 304 SS Turbo Chambered Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75
    • (1 review)
      # 285612526
      Universal 304 SS Turbo S-Tube Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Muffler Structure: Turbo. Stainless Works is the only manufacturer to build...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75
    • (1 review)
      # 285612558
      Universal 304 SS Turn Down Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s construction-the...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 285612447
      Universal Smooth 304 SS Oval Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $171.00
    • (0 reviews)
      # 91560812
      Universal Chrome Low-Line Lake Pipes by Patriot Exhaust®. Main Tubing Diameter: 2". Great for bringing back the custom car look some popular in the 50's and 60's. This product is made of high-quality materials to serve you for...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $221.19 - $311.75
    • (0 reviews)
      # 389793730
      Universal Chrome Plated Lake Pipes by Patriot Exhaust®. Main Tubing Diameter: 3.5". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system with one functioning inlet tube and three dress-up tubes. A great...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $347.76 - $476.42
    • (0 reviews)
      # 381402860
      Universal Mild Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2". Give your vehicle that custom look with our classic shielded side exhaust system. Large...
      Give your vehicle that custom look with our classic shielded side exhaust system with a show quality chrome finishLarge inlet and outlet pipes with low back pressure six-sided louvered core mufflers
      $262.33 - $301.71
    • (6 reviews)
      # 286167467
      Universal 200 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Without Heat Shield. The...
      Exceed all federal emission standardsStainless Steel shells
      $123.56 - $189.90
    • (6 reviews)
      # 286167469
      Universal 220 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Air Tube. Without O2 Sensor Port. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $68.56
    • (6 reviews)
      # 286167474
      Universal 222 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $66.82 - $67.53




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