BMW 320i Exhaust Parts

Your BMW 320i came with a factory-installed exhaust system, and for good reason. It's responsible for removing the noxious byproducts produced as your engine combusts a mixture of fuel and oxygen. That results in cleaner gases being released harmlessly into the air. A side benefit? Your exhaust system also helps to suppress the noise produced during the combustion process.

How Your Exhaust System Works

It starts with the pollutants passing through the catalytic converter. There, metals such as platinum, palladium, and rhodium capture the toxic molecules and separate them into nitrogen and oxygen. Oxygen is allowed to pass through the system, while the nitrogen remains trapped. This process consumes both hydrocarbons and carbon monoxide, leaving behind little more than water vapor and carbon dioxide.

Then the exhaust manifold collects the cleaned gases and directs them to your exhaust pipe. At the same time, the resonator and muffler team up to limit engine noise and deliver optimal airflow. Finally, those cleaner fumes are released through the tail pipe into the atmosphere.

How to Spot Exhaust System Issues

Eventually, though, even the highest-quality exhaust system components can begin to go bad. Signs of failure include:

  • Worsening fuel efficiency
  • You notice the smell of rotten eggs in the air
  • You hear odd noises coming from the muffler or exhaust pipe
  • Your "Check Engine" dash light comes on

  • Save Up to 25% When You Buy Genuine BMW Exhaust Parts Online

    The exhaust system parts made by your manufacturer are designed to be completely compatible with your premium car, delivering the guaranteed fit, performance, and quality that you want. Our online auto parts store has everything you need for your project, in stock and priced well below the MSRP that others charge. That can save you hundreds of dollars on the part alone, allowing you to stay on budget while repairing your ride. Buy today and we'll get your order shipped straight out! If you have any questions or concerns, feel free to reach out to our team of BMW parts experts. We're always happy to help!

    Center Muffler Clamp

    Part Number: 18-30-5-A09-B63
    BMW BMW
    Notes: Included with front muffler. Included with center muffler.
    Other Names: Converter & Pipe Clamp, Exhaust Clamp, Catalytic Converter Clamp, Front Muffler Clamp, Screw Clamp 183013
    Replaces: 18308631986
    Description: 2017-20, front. 2017-19, front. 2017-21. 2.0L, rear. 2.0L, with xdrive 30ex, front. Sedan, 2.0L, without hybrid.
    MSRP $47.33
    $35.41

    Converter & Pipe Bracket

    Part Number: 18-30-7-606-138
    BMW BMW
    Other Names: Lower Bracket, Converter Lower Bracket, Converter & Pipe Lower Bracket, Exhaust Bracket, Holder Catalytic Converter N 183012
    Description: 2012-16, n20-ulev, auto trans. 2014-16, n26-sulev. 2.0L. 2015-16.
    MSRP $68.48
    $54.77

    Hold Down Clamp Bolt

    Part Number: 07-11-9-904-459
    BMW BMW
    Other Names: Heat Shield Bolt, Guide Rail Bolt, Roof Panel Bolt, Exhaust Heat Shield Bolt, Hex Bolt With Washer 889522
    Replaces: 7119913448, 7119915012, 7119915060
    Description: 2014-21. Hex. Coupe. With dynamic drive. 6x12. Sedan/wagon, conventional, 6x12mm.
    $0.84

    Exhaust Pipe Clamp

    Part Number: 18-30-7-560-779
    BMW BMW
    Other Names: Exhaust Clamp, Front Pipe Clamp, Center Muffler Clamp, Rear Muffler Clamp, Converter & Pipe Clamp, Front Muffler Clamp, Clamping...
    Replaces: 18111723678, 18201742445
    Description: 60mm 4.8L, rear. 320 hp, front. 3.0L turbo, rear. 2012-16, n20-ulev. 3.0L turbo, 2011-12. 3.0L turbo, 2013-15. 3.0L with turbo diesel....
    MSRP $68.62
    $51.34

    Converter & Pipe Retainer Ring

    Part Number: 18-30-7-606-136
    BMW BMW
    Other Names: Pre-Converter Clamp, Exhaust Clamp, Converter & Pipe Clamp, Turbocharger Clamp, Converter & Pipe Lock Ring, Catalytic Converter...
    Replaces: 18328644473
    MSRP $47.33
    $35.41

    Rear Muffler Insulator

    Part Number: 18-30-7-616-850
    BMW BMW
    Other Names: Center Muffler Rubber Mount, Exhaust System Hanger, Front Muffler Hanger, Muffler & Pipe Insulator, Rear Muffler Mount, Center...
    Replaces: 18208620181
    MSRP $21.44
    $17.84
    MSRP $97.23
    $80.28

    Exhaust Resonator

    Part Number: 13-90-9-884-590
    BMW BMW
    Other Names: Fuel Tank Breath.Line With R 135040
    Description: 2.0L. Resonator & pipe.
    Backordered
    MSRP $48.50
    $41.29

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