Exhaust Muffler. Porsche 996 3.6L 2002-05

Exhaust Muffler.
Restore the rear exhaust system of your Porsche 911 (996-series) with these genuine OEM mufflers. Designed for 2002-05 Porsche 911 Carrera/Carrera 4 models, these silencers deliver direct-fit replacement, correct hanger mounting, factory tail-pipe alignment and authentic acoustic performance.  

Fits:

• Porsche 996 C2 3.6L 2002-2005
• Porsche 996 C4 3.6L 2002-2005
• Porsche 996 C4S 3.6L 2002-2005
  
  

Diagram Ref No 20 And 26

What This Product Does:

• The muffler (silencer/back-box) is the final large component in the exhaust system: it reduces noise, completes the exhaust flow path, and ensures the exhaust gases are safely expelled under the rear of the vehicle.
• It helps maintain the correct back-pressure, supports the exhaust hangers and alignment, and plays a role in sound tuning (ensuring the vehicle meets factory acoustic specification).
• Correct fitment ensures the tailpipes, hangers, connections and appearance align with factory standards—especially important for OEM look, sound, and performance.
  
  

Symptoms Of Wear, Damage Or Need For Replacement:

• Excessive noise, harsh exhaust tone, or sudden change in sound (potential sign of internal baffle damage or leaks).
• Visible corrosion, holes, cracks or rust on the muffler body or tail-pipe connections—common on older 996 cars.
  
• Poor fitment or misalignment of the muffler/tailpipe assembly (exhaust shifting, visible sagging or melted brackets).
• Reduced performance / overheating of nearby components due to exhaust misalignment or exhaust gases contacting bodywork.
• Bad or broken mounting/hanger points causing vibration or movement under load.

Why Replacement Matters:

• Replacing worn or damaged mufflers restores correct sound, fit and backing support of the full exhaust system.
• Maintains factory appearance and acoustic characteristics — important for value, authenticity and drive-quality in the 996 series.
• Prevents further damage: a failing muffler may lead to hanger failure, alignment issues or heat damage to nearby components.
• Enhances reliability: a fresh muffler assembly means fewer leaks, less corrosion risk and better longevity of the rear exhaust section.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99611113

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