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- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Powerful straight though system with all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark. you should also purchase EXHAUSTKIT09
With Dansk Heat Exchangers and Silencer
Fits:
Porsche 911 1974-83 2.7L / 3.0L
Kit Includes:
- 1 x single big bore outlet rear silencer
- 2 x heat exchangers,
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT05
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Replace the rusty, steel heat exchangers and exhaust with this high quality exhaust and stainless steel SSi heat exchanger package.
Made using AISI 321/EN4531 titanium stabilized stainless steel, the heat exchangers offer long life, increased power output and a quality fit.
Heat Exchangers & 
Single Outlet Rear Silencer/Muffler 60mm Tail Pipe 92.211SPowerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark. you should also purchase EXHAUSTKIT09
Fits:
Porsche 911 1974-83 2.7ltr / 3.0ltr
Kit Includes:
- 1 x single outlet rear silencer (Dansk)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT55
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Replace the rusty, steel heat exchangers and exhaust with this high quality exhaust and stainless steel SSi heat exchanger package.
Made using AISI 321/EN4531 titanium stabilized stainless steel, the heat exchangers offer long life, increased power output and a quality fit.
Heat Exchangers & Twin Outlet Rear Silencer/Muffler 70mm Tail Pipe 92.511SDPowerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark. you should also purchase EXHAUSTKIT09
Fits:
Porsche 911 1974-83 2.7ltr / 3.0ltr
Kit Includes:
- 1 x twin outlet rear silencer (Dansk)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
For more information about this product Click Here
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT56
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Replace the rusty, steel heat exchangers and exhaust with this high quality exhaust and stainless steel SSi heat exchanger package.
Made using AISI 321/EN4531 titanium stabilized stainless steel, the heat exchangers offer long life, increased power output and a quality fit.
Heat Exchangers & Single Outlet Rear Silencer/Muffler 70mm Tail Pipe 92.511SPowerful straight though system all Stainless steel parts, offering more bhp and a fuller sound. Made in Denmark. you should also purchase EXHAUSTKIT09
Fits:
Porsche 911 1974-83 2.7ltr / 3.0ltr
Kit Includes:
- 1 x single outlet rear silencer (Dansk)
- 2 x heat exchangers, (SSI)
- 2 x oil pipes
- 8 x gaskets.
- 2 x silencer straps.
For more information about this product Click Here
This kit is comprised of the following items:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 2.7-3.0L 08/1973-07/1983
Exhaust conversion set, free-flow, with 60 mm tail pipe. You will need to convert the oil pipe system due to change of heat exchangers's shape. All oil pipes necessary are provided with this kit.
Material: Stainless Steel
Number of Inlets / Outlets: 2/1
Outer Diameter: 60 mm
Surface: Blank
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620000810
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Fits:
Porsche 911 (conversion) 3.0L 08/75-07/83
Porsche 911/911 S/911 Carrera 2.7L 08/73-07/75
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620611300
The product you are viewing cross references to these numbers
Sport Silencers
Porsche 2 IN / 1 OUT Sports Silencers - Balanced Performance & Sound Upgrade
2 IN / 1 OUT Sports Silencers are performance exhaust components designed to merge exhaust flow from dual inlet pipes into a single outlet, optimising exhaust gas velocity while enhancing sound quality. This configuration is commonly used on Porsche models with dual exhaust banks, providing balanced flow, improved efficiency, and a refined yet sporty exhaust note.
Available from Design911, Porsche 2 IN / 1 OUT sports silencers are engineered to reduce backpressure, improve throttle response, and deliver a deeper, more engaging exhaust sound without compromising everyday usability.
What Do 2 IN / 1 OUT Sports Silencers Do?
These sports silencers manage exhaust flow by combining two exhaust streams into one outlet.
Core Functions:
- Merge dual exhaust flows efficiently.
- Reduce exhaust restriction and backpressure.
- Improve exhaust gas velocity.
- Enhance exhaust tone and character. Support improved engine breathing and response.
Efficient exhaust flow management is key to both performance and sound refinement.
Why Do Standard Exhaust Silencers Fail?
Factory silencers are designed primarily for noise
suppression and emissions compliance. Over time, they can suffer from:
- Internal corrosion due to heat and condensation.
- Restrictive internal baffling limiting performance.
- Rattling or collapsed internal components.
- Increased backpressure as components degrade.
- Reduced compatibility with performance upgrades.
Failing silencers can cause power loss, poor exhaust tone, and unwanted noise.
Why Upgrade to a 2 IN / 1 OUT Sports Silencer?
Performance sports silencers are designed to enhance both efficiency and sound.
Upgrade Benefits:
- Improved exhaust flow and reduced backpressure.
- Deeper, more refined sporty exhaust tone.
- Enhanced throttle response and drivability.
- Optimised flow for dual-bank engine layouts.
- Durable construction for long-term performance use.
Upgrading delivers a noticeable improvement in exhaust performance and driving enjoyment.
Highlights
- Porsche 2 IN / 1 OUT sports silencer upgrades
- Optimised flow for dual exhaust systems
- Improved performance and exhaust tone
- Designed for road and performance driving
- High-quality materials for durability
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Sport Silencers / Mufflers
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1 IN / 1 OUT
Standard Silencers -
1 IN / 1 OUT
Sports Silencers -
1 IN / 2 OUT
Sports Silencers -
2 IN / 1 OUT
Standard Silencers -
2 IN / 2 OUT
Sport Silencers -
All Silencers / Mufflers
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Catalyst / Bypass
-
Manifold / Headers
-
Exhaust Tail Pipes
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Heat Exchangers
-
Exhaust Pre-Silencer
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Exhaust Cross over pipes
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Exhaust Package
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Exhaust Gaskets
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Exhaust Nuts / Bolts / Studs
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Brackets / Clamps / Straps
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Exhaust Fitting Kits
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Fabspeed Exhaust
-
Lambda Sensors / Probes
-
Lambda Sensor Extensions
