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Porsche > 356 (1950-1965) > 356B 1959-63 > Exhausts >

2 IN / 2 OUT
Sport Silencers

DISPLAYING 1 to 2 (of 2 products)
Exhaust muffler / silencer rear box. Porsche 356 A/B/C - 1620603100, PO-92104, 61611101005
3
Exhaust muffler / silencer rear box. Porsche 356 A/B/C
1620603100
Product Information
Product Information
Rear Exhaust, Sport, with two polished, straight tail pipes in Carrera style. Deep sporty sound. Tail pipes constructed to fit perfectly with Carrera rear lower panel, but will come out just under the car body on "non Carreras".

danskmotorsport

Fits:
Porsche 356 B/C 1.6L 01/1959-12/1965

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Related, superseded, cross reference or alternative numbers for comparison.

1620603100
1620603100
PO-92104
61611101005

The product you are viewing cross references to these numbers
Exhaust Muffler / Silencer Rear box. Porsche 356 B / C - PO-92104, PO92104, 61611101005, 1620603100 - PO-92104, 1620603100
3
Exhaust Muffler / Silencer Rear box. Porsche 356 B / C
356PO92104
Product Information
Product Information
Sport rear exhaust box with straight polished twin tail pipes. Painted stainless steel.

danskmotorsport

Fits:
Porsche 356 B / C 1959-65

Exhaust, Sport, with two polished, straight tail pipes in Carrera style with a deep sporty sound. 

Tail pipes are constructed to fit perfectly with Carrera rear lower panel but will come out just under the car body on "non Carreras"



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Related, superseded, cross reference or alternative numbers for comparison.

356PO92104
PO-92104
PO92104
61611101005
1620603100

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About 2 IN / 2 OUT
Sport Silencers

Porsche 2 IN / 2 OUT Sports Silencers - Maximum Flow & Sport Exhaust Sound

2 IN / 2 OUT Sports Silencers are high-performance exhaust components designed for Porsche models with dual inlet and dual outlet exhaust systems. By optimising exhaust flow from both cylinder banks, these sports silencers reduce backpressure, enhance throttle response, and deliver a more aggressive, motorsport-inspired exhaust tone.

Available from Design911, Porsche 2 IN / 2 OUT sports silencers are engineered to provide balanced exhaust flow, improved performance, and a distinctive sound upgrade while maintaining everyday drivability.

What Do 2 IN / 2 OUT Sports Silencers Do?

These sports silencers manage and enhance exhaust flow from dual exhaust banks.

Core Functions:

  • Reduce exhaust restriction and backpressure.
  • Improve exhaust gas evacuation from both banks.
  • Enhance throttle response and power delivery.
  • Deliver a sportier, more aggressive exhaust tone.
  • Maintain balanced flow across the exhaust system.

Efficient dual-bank exhaust flow is essential for high-performance applications.

Why Do Standard Exhaust Silencers Fail?

Factory exhaust silencers are designed primarily for noise control and longevity. Over time, they can suffer from:

  • Internal corrosion from moisture and heat cycles.
  • Restrictive baffling limiting exhaust flow.
  • Internal component collapse or rattling.
  • Increased backpressure as components degrade.
  • Incompatibility with performance tuning upgrades.

Failing silencers can lead to power loss, dull sound, and exhaust leaks.

Why Upgrade to 2 IN / 2 OUT Sports Silencers?

Sports silencers are engineered to enhance both performance and sound.

Upgrade Benefits:

  • Improved exhaust flow and reduced restriction.
  • More aggressive, performance-focused exhaust sound.
  • Enhanced throttle response and engine breathing.
  • Durable construction for high-heat environments.
  • Ideal for tuned, track, and performance road cars.

Upgrading transforms both the sound and driving experience of your Porsche.

Highlights

  • Porsche 2 IN / 2 OUT sports silencer upgrades
  • Maximum exhaust flow for dual-bank systems
  • Aggressive, motorsport-inspired exhaust tone
  • Designed for performance and enthusiast driving
  • High-quality materials for durability       

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