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Porsche > 911 & 912 (1965-1989) > 911 1974-1977 2.7L / 1976-77 3.0 Carrera > Exhausts >

1 IN / 1 OUT
Standard Silencers

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DISPLAYING 1 to 4 (of 4 products)
Exhaust Muffler / Silencer Rear box SSI. Porsche 911 75-89 With TÜV/EEC approval - 1620611800, 92.201SSI, 92201SSI, 91111103100, 93011102200, 93011104300
1
Exhaust Muffler / Silencer Rear box SSI. Porsche 911 75-89 With TÜV/EEC approval
1620611800
Product Information
Product Information
Single inlet and Single outlet Rear exhaust, Stainless steel. With TÜV/EEC approval

ssi

Fits:
Porsche 911 Carrera 3.2L 08/83-07/89
Porsche 911 SC / 911 Carrera 2.7L-3.0L 08/75-07/83

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Related, superseded, cross reference or alternative numbers for comparison.

1620611800
1620611800
92.201SSI
92201SSI
91111103100
93011102200
93011104300

The product you are viewing cross references to these numbers
Exhaust muffler / silencer rear box, Standard single outlet. With TÜV/EEC approval Porsche 911 1974-89 - 92.201, 92201, 92.201S, 92201S, 92.201OE, 92201OE, 91111103100, 93011102200, 93011104300, 1620609600, 1620608700, 1620609400, 1620607400, 91122092201S, 91122092201, 91122092201OE, 93011102203 - 1620609400
3
Exhaust muffler / silencer rear box, Standard single outlet. With TÜV/EEC approval Porsche 911 1974-89
91122092201
Product Information
Product Information
Exhaust muffler / silencer rear box, Replacement. Painted . Single Outlet With Ø60mm polished tail pipe.

With TÜV/EEC approval

dansk   tuv

Fits:
Porsche 911 1974-89 2.7L / 3.0L / 3.2L.



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Related, superseded, cross reference or alternative numbers for comparison.

91122092201
92.201
92201
92.201S
92201S
92.201OE
92201OE
91111103100
93011102200
93011104300
1620609600
1620608700
1620609400
1620607400
91122092201S
91122092201
91122092201OE
93011102203

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Rear box. Porsche 911 1975-83 - 92.101OE, 92101OE, 1620608700, 93011102200, 91111103100, 93011102203 - 92.101OE, 1620608700
3
Exhaust Muffler / Silencer Rear box. Porsche 911 1975-83
91122092101OE
Product Information
Product Information
Rear exhaust box 1in - 1 out, 60mm tail pipe with chrome tip.
Made to Porsche OE specifications. All painted stainless steel. 

dansk

Fits:
Porsche 911 2.7L / 3.0L 1975-83 only.

Exhaust rear, with one Ø60 mm tail pipe and chrome tip. Made of double wall stainless steel - inside/outside, exactly according to original specifications and with grey heat resistant paint


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

91122092101OE
92.101OE
92101OE
1620608700
93011102200
91111103100
93011102203

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Rear box. With TÜV/EEC approval Porsche 1975-89 - 1620606300, 92.501, 93011102200, 93011102203, 93011104300 - 1620606300
3
Exhaust Muffler / Silencer Rear box. With TÜV/EEC approval Porsche 1975-89
91122092501
Product Information
Product Information
Rear sport exhaust, Ø70mm tail pipe in polished stainless steel. Box in painted aluminized steel.
With TÜV/EEC approval  2.7ltr and 3.0ltr engine

danskmotorsport   tuv

Fits:
Porsche 911 2.7ltr - 1974 to 1977 with TÜV/EEC approval for 2.7ltr engine
Porsche 911 SC 3.0ltr - 1978 to 1983 with TÜV/EEC approval for 3.0ltr engine
Porsche 911 Carrera 3.2ltr  - 1984 to 1989




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

91122092501
1620606300
92.501
93011102200
93011102203
93011104300

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
Also found on these pages
About 1 IN / 1 OUT
Standard Silencers

Porsche 1 IN / 1 OUT Standard Silencers - OEM-Style Exhaust Replacement

1 IN / 1 OUT Standard Silencers are factory-style exhaust components designed to manage exhaust flow and noise levels on Porsche models with a single inlet and single outlet exhaust configuration. Engineered to match original equipment specifications, these silencers restore correct exhaust performance, sound balance, and drivability while preserving a refined, road-friendly exhaust note.

Available from Design911, Porsche 1 IN / 1 OUT standard silencers are ideal for owners seeking reliable OE-style replacements or direct-fit solutions that maintain factory exhaust characteristics.

What Do 1 IN / 1 OUT Standard Silencers Do?

Standard silencers control exhaust gases while reducing noise and maintaining factory performance.

Core Functions:

  • Manage exhaust gas flow efficiently.
  • Reduce exhaust noise to OEM levels.
  • Maintain correct exhaust backpressure.
  • Support smooth engine operation.
  • Preserve factory sound and comfort.

Proper silencer operation ensures quiet, reliable exhaust performance.

Why Do Standard Exhaust Silencers Fail?

Even OE-style silencers are exposed to heat, moisture, and corrosion over time. Common failure causes include:

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

Failing silencers can lead to excessive noise, poor sound quality, and reduced exhaust efficiency.

Why Upgrade or Replace Standard Silencers?

Replacing worn silencers restores exhaust performance and reliability.

Upgrade Benefits:

  • Restores original exhaust sound and function.
  • Ensures correct exhaust flow and backpressure.
  • Improves durability compared to aged components.
  • Maintains factory refinement and comfort.
  • Ideal for maintenance, restoration, or daily driving.

Upgrading ensures dependable exhaust operation while preserving original driving characteristics.

Highlights

  • Porsche 1 IN / 1 OUT standard silencer replacements
  • OEM-style fitment and performance
  • Maintains factory exhaust sound levels
  • Designed for road comfort and reliability
  • Ideal for restoration and daily use       

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