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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram

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99322093300SOE
Product Information
Product Information
Rear sport exhaust set. OE style with TÜV/EEC approval
Stainless Steel, polished. SET OF 2.

dansk   tuv

Fits:
Porsche 993 C2 / C4 1994-98

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Related, superseded, cross reference or alternative numbers for comparison.

99322093300SOE
93.300SOE
93300SOE
1620608110
99311199300
99311104511
99311104513
99311104510
99311104514
99311104611
99311104614
99311104610
99311104613

The product you are viewing cross references to these numbers
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About Standard Silencers / Mufflers

Porsche Standard Silencers & Mufflers - OEM Exhaust Replacement Solutions

Standard Silencers / Mufflers are factory-style exhaust components designed to manage exhaust flow, reduce noise, and maintain the original driving characteristics of your Porsche. Engineered to meet strict quality and performance standards, standard mufflers provide balanced exhaust backpressure, refined sound levels, and reliable long-term operation.

Available from Design911, this category includes genuine Porsche exhaust mufflers as well as high-quality aftermarket standard replacements, offering Porsche owners reliable options for maintenance, restoration, and everyday driving.

What Do Standard Silencers / Mufflers Do?

Standard exhaust silencers control sound levels and exhaust flow to deliver smooth, refined performance.

Core Functions:

  • Reduce exhaust noise to factory-approved levels.
  • Manage exhaust gas flow efficiently.
  • Maintain correct backpressure for engine performance.
  • Support smooth drivability and comfort.
  • Preserve original exhaust sound characteristics.

Proper silencer operation is essential for quiet, reliable, and compliant vehicle operation.

Why Do Standard Exhaust Silencers Fail?

Despite being designed for longevity, exhaust mufflers are exposed to heat, moisture, and corrosion. Common failure causes include:

  • Internal corrosion from condensation and heat cycles.
  • Rusting of outer casing or welds.
  • Internal baffle deterioration or rattling.
  • Exhaust leaks due to material fatigue.
  • Age-related wear in high-mileage vehicles.

Failing silencers can result in excessive noise, poor sound quality, and reduced exhaust efficiency.

Why Upgrade or Replace Standard Silencers / Mufflers?

Replacing worn exhaust silencers restores factory performance and reliability.

Upgrade Benefits:

  • Restores original exhaust sound and refinement.
  • Ensures correct exhaust flow and backpressure.
  • Maintains authenticity and originality of your Porsche.
  • Improves durability compared to ageing components.
  • Ideal for servicing, restoration, and daily use.

Choosing OEM or high-quality aftermarket replacements ensures long-term reliability and peace of mind.

Highlights

  • Porsche standard silencer and muffler replacements
  • Genuine Porsche and premium aftermarket options
  • Factory-style fitment and sound characteristics
  • Designed for comfort, reliability, and longevity
  • Ideal for maintenance and restoration       

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