BMW 323i Exhaust Parts

2009 BMW M3

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The factory exhaust system on your BMW 323i car is responsible for safely handling and dispersing any noxious fumes generated by your engine's combustion process. Some components also help to reduce the amount of noise produced by the process.

There are several stages to the exhaust process. First, pollutants pass through the catalytic converter. The cat contains metals like platinum, rhodium, and palladium, which capture the toxic molecules and separate them into nitrogen and oxygen. The oxygen continues on, while nitrogen remains trapped. This process consumes both hydrocarbons and carbon dioxide, leaving little more than water vapors and carbon dioxide.

The gases continue through the exhaust system to the exhaust pipe, while the resonator and muffler work together to dampen the noise and maximize airflow. Finally, the harmless gases exit the tailpipe and release into the atmosphere.

How to Recognize Exhaust Issues

Eventually, even the highest-quality exhaust system parts can go bad. When that happens, you're polluting both the air that you breathe and the atmosphere in general. Signs of trouble include:

  • Worsening fuel economy
  • Strange noises coming from your exhaust pipe or muffler
  • The distinctive odor of rotten eggs
  • The "Check Engine" dash warning light comes on
  • Shop Online and Save up to 35% on Genuine BMW Exhaust Parts

    The only exhaust system components that are designed specifically for your BMW 323i are the ones that BMW made for your car. Our online parts store sells them, and at a steep discount to the MSRP. Buy today to save both time and money!

    Exhaust Tail Pipe Tip

    Part Number: 18-30-7-840-634
    BMW BMW
    Other Names: Tailpipe Tip Chrome 189010
    Backordered

    Camshaft

    Part Number: 11-31-7-841-166
    BMW BMW
    Other Names: Camshaft Exhaust 113001
    Description: M3. Exhaust. Cylinders 1-4.
    Backordered

    Turbocharger

    BMW BMW
    Notes: Includes Exhaust Manifold.
    Other Names: Exhaust Turbocharger 116030
    Replaces: 11-65-4-577-236, 11-65-7-588-995
    MSRP $4,112.89
    $3,528.86

    Camshaft

    Part Number: 11-31-7-841-167
    BMW BMW
    Other Names: Camshaft Exhaust 113001
    Replaces: 11-31-7-838-190
    Description: M3. Exhaust. Cylinders 5-8.
    Backordered

    Emission Label

    Part Number: 71-22-7-594-295
    BMW BMW
    Other Names: Label Exhaust Emission 712010
    Description: Coupe & convertible,.
    Backordered

    Info Label

    BMW BMW
    Other Names: Label Exhaust Emission 712010
    Replaces: 71-22-7-577-630, 71-22-7-580-939, 71-22-7-593-197
    Description: Sedan, wagon, exhaust, with turbo.
    Backordered

    Manifold Gasket

    BMW BMW
    Other Names: Exhaust Manifold Gasket, Manifold Seal, Exhaust Manifold Seal, Gasket Ring 188520
    MSRP $29.85
    $24.06

    Sensor

    BMW BMW
    Other Names: Exhaust Temp Sensor, Temp Sensor, Exhaust Gas Temperature (Egt) Sensor, Oxygen Sensor, Pressure Sensor, Temperature Sensor Exhaust...
    MSRP $122.21
    $91.44

    Info Label

    Part Number: 71-22-7-612-761
    BMW BMW
    Other Names: Emission Label, Label Exhaust Emission 712010
    Description: 128i. Sedan, wagon, exhaust, without turbo. 3.0L. 30i.
    Backordered

    Converter & Pipe Gasket

    Part Number: 11-62-7-830-668
    BMW BMW
    Other Names: Exhaust Pipe To Manifold Gasket, Gasket Ring 119990
    Description: 3.2L. 4.0L.
    MSRP $26.21
    $24.53

    Sensor

    BMW BMW
    Other Names: Exhaust Gas Temperature (Egt) Sensor, Oxygen Sensor, Temp Sensor, Thermo Sensor, Temperature Sensor Exhaust 136040
    Description: 3 series. Upper. Bottom. Location-After Diesel Particulate Filter. X5. 3.0l. Up stream. Without nox. Front. 2013-17, egr components,...
    MSRP $122.21
    $91.44

    Muffler

    BMW BMW
    Other Names: Rear Muffler, Exhaust Muffler, Rear Muffler 189990
    Replaces: 18-30-7-566-941
    Description: 3 series. Without performance. Rear. Sedan & wagon, 3.0L without turbo.
    MSRP $1,390.29
    $1,265.16

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