BMW 323i Exhaust Parts

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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!

    Clamp

    Part Number: 11-65-7-620-507
    BMW BMW
    Other Names: Exhaust Clamp, Turbocharger Clamp, Screw Clamp 183013
    Replaces: 11-65-7-576-986
    Description: 4.4L turbo, 2013-17, lower. 4.4L turbo (s63t), lower. 4.4L turbo, with M6, small. With m model, turbocharger & lines, lower.
    Fits:
    • BMW:
      • 550i,
      • 550i GT,
      • 550i GT xDrive,
      • 550i xDrive,
      • 650i,
      • 650i Gran Coupe,
      • 650i xDrive,
      • 650i xDrive Gran Coupe,
      • 750i,
      • 750i xDrive,
      • 750Li,
      • 750Li xDrive,
      • Alpina B6 xDrive Gran Coupe,
      • Alpina B7,
      • Alpina B7 xDrive,
      • Alpina B7L,
      • Alpina B7L xDrive,
      • M5,
      • M550i xDrive,
      • M6,
      • M6 Gran Coupe,
      • X5,
      • X6
    MSRP $35.70
    $29.71

    Manifold Gasket

    Part Number: 11-62-1-732-969
    BMW BMW
    Other Names: Exhaust Manifold Gasket, Exhaust Manifold Heat Shield, Gasket W Heat Prot.Shield As C118523
    Fits:
    • BMW:
      • 323Ci,
      • 323i,
      • 325Ci,
      • 325i,
      • 325xi,
      • 328Ci,
      • 328i,
      • 330Ci,
      • 330i,
      • 330xi,
      • 525i,
      • 528i,
      • 530i,
      • X3,
      • X5,
      • Z3,
      • Z4
    MSRP $114.33
    $101.77

    Rear Muffler Rubber Mount

    Part Number: 18-20-7-568-777
    BMW BMW
    Other Names: Mount, Muffler Front Mount, Muffler Rear Mount, Front Pipe Mount, Rear Bracket Rubber Mount, Rear Muffler Insulator, Exhaust System...
    Description: 3.0L turbo diesel. 3.0L non turbo. Without twin power turbo, type 1.
    Fits:
    • BMW:
      • X5,
      • X6
    MSRP $40.36
    $36.44

    Tailpipe Extension Alum Look

    Part Number: 18-30-7-553-643
    BMW BMW
    Other Names: Exhaust Tail Pipe Tip, Tailpipe End Piece Alu Look 189010
    Description: Sedan & wagon, 3.0L without turbo.
    Fits:
    • BMW:
      • 325i,
      • 325xi,
      • 328i,
      • 328i xDrive,
      • 328xi,
      • 330i,
      • 330xi
    MSRP $71.00
    $64.11

    Manifold Gasket

    Part Number: 11-62-7-614-095
    BMW BMW
    Other Names: Exhaust Manifold Gasket, Exhaust Manifold Cylinder He 118523
    Replaces: 11-62-7-576-990, 11-62-7-589-672
    Fits:
    • BMW:
      • 530i,
      • 540i,
      • 550i,
      • 550i GT,
      • 550i GT xDrive,
      • 550i xDrive,
      • 650i,
      • 650i Gran Coupe,
      • 650i xDrive,
      • 650i xDrive Gran Coupe,
      • 750i,
      • 750i xDrive,
      • 750Li,
      • 750Li xDrive,
      • 760Li,
      • Alpina B6 xDrive Gran Coupe,
      • Alpina B7,
      • Alpina B7 xDrive,
      • Alpina B7L,
      • Alpina B7L xDrive,
      • M550i xDrive,
      • X5,
      • X6
    MSRP $136.50
    $95.09

    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: 18-32-8-644-473
    Fits:
    • BMW:
      • 228 xDrive Gran Coupe,
      • 228i,
      • 228i Gran Coupe,
      • 228i xDrive,
      • 228i xDrive Gran Coupe,
      • 230i,
      • 230i xDrive,
      • 320i,
      • 320i xDrive,
      • 328i,
      • 328i GT xDrive,
      • 328i xDrive,
      • 330e,
      • 330e xDrive,
      • 330i,
      • 330i GT xDrive,
      • 330i xDrive,
      • 428i,
      • 428i Gran Coupe,
      • 428i xDrive,
      • 428i xDrive Gran Coupe,
      • 430i,
      • 430i Gran Coupe,
      • 430i xDrive,
      • 430i xDrive Gran Coupe,
      • 435i,
      • 435i Gran Coupe,
      • 435i xDrive,
      • 435i xDrive Gran Coupe,
      • 528i,
      • 528i xDrive,
      • 530e,
      • 530e xDrive,
      • 530i,
      • 530i xDrive,
      • 535i,
      • 535i GT,
      • 535i GT xDrive,
      • 535i xDrive,
      • 640i,
      • 640i Gran Coupe,
      • 640i xDrive,
      • 640i xDrive Gran Coupe,
      • 740e xDrive,
      • i8,
      • M2,
      • M235i,
      • M235i xDrive,
      • M235i xDrive Gran Coupe,
      • X1,
      • X2,
      • X3,
      • X4,
      • X5,
      • X6,
      • Z4
    MSRP $47.33
    $35.41

    Exhaust Clamp

    Part Number: 18-30-7-560-778
    BMW BMW
    Other Names: Exhaust Clamp, Front Pipe Clamp, Muffler & Pipe Clamp, Rear Muffler Clamp, Front Muffler Clamp, Center Muffler Clamp, Clamping Bush...
    Replaces: 18-20-1-742-073, 18-30-7-525-639
    Description: 55mm 2007-10. 4.4L 1997-98. 2.8L 1997-98. 4.4L 1999-03. 2.0L with turbo. 3.0L with turbo diesel. 3.0L without turbo, 55mm. Coupe &...
    Fits:
    • BMW:
      • 325i,
      • 325xi,
      • 328i,
      • 328i xDrive,
      • 328xi,
      • 330i,
      • 330xi,
      • 335d,
      • 335i,
      • 335i xDrive,
      • 335is,
      • 335xi,
      • 528i,
      • 540i,
      • 545i,
      • 550i,
      • 645Ci,
      • 650i,
      • 740i,
      • 740iL,
      • 745i,
      • 745Li,
      • 840Ci,
      • 850Ci,
      • X3,
      • X5,
      • Z4
    MSRP $61.53
    $46.04

    Muffler

    Part Number: 18-30-7-645-938
    BMW BMW
    Other Names: Rear Muffler, Exhaust Muffler, Rear Muffler With Exhaust Fl 181033
    Replaces: 18-30-7-621-868
    Description: 2014-16, n20-ulev. Rear. 4 series. 428i. 328i xDrive. Sedan. 2015-16. 2012-16, n26-sulev.
    Fits:
    • BMW:
      • 328i,
      • 328i GT xDrive,
      • 328i xDrive,
      • 428i,
      • 428i Gran Coupe,
      • 428i xDrive,
      • 428i xDrive Gran Coupe
    MSRP $1,456.69
    $1,098.34

    Rear Muffler

    Part Number: 18-30-8-635-782
    BMW BMW
    Other Names: Muffler, Rear Muffler With Exhaust Fl 181033
    Description: X5. 2.0l. Rear. Without m sports pkg. 2.0L turbo, base.
    Fits:
    • BMW:
      • X5
    MSRP $2,549.22
    $1,922.12

    Upper Duct

    Part Number: 51-74-7-336-223
    BMW BMW
    Other Names: Exhaust Air Duct Upper 517110
    Description: Ducts.
    Fits:
    • BMW:
      • i8
    MSRP $463.77
    $397.92

    Rear Muffler

    Part Number: 18-30-7-848-147
    BMW BMW
    Other Names: Muffler, Rear Muffler With Exhaust Fl 181033
    Replaces: 18-30-7-595-206
    Description: X6. X5. 4.4l. Rear. M model.
    Fits:
    • BMW:
      • X5,
      • X6
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