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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://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Exhaust Packages

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DISPLAYING 1 to 9 (of 9 products)
EXHAUSTKIT20
Product Information
Product Information
Exhaust & Heat Exchanger Twin Outlet System Porsche 911 1974-83

1 x Stainless steel Sports exhaust with twin big bore 84mm outlets.
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel cross over pipe.

offering more bhp and a fuller sound.

Fits:
Porsche 911 2.7L / 3.0L 1974-83

Please note: It is illegal to fit this product for road use on type-approved vehicles first used on or after 1/3/2001


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Related, superseded, cross reference or alternative numbers for comparison.

EXHAUSTKIT20
93011116905
93021102901
93011104300
93011104303
93011118303
93011118306
93011323009
93011323015
93011323025
93011312328
9301132318
93011323019

The product you are viewing cross references to these numbers
EXHAUSTKIT05
Product Information
Product Information
Exhaust Package

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Related, superseded, cross reference or alternative numbers for comparison.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
90111115704
90111119300
91111319001
91110772910
91110773910
93021102501
93011102200

The product you are viewing cross references to these numbers
EXHAUSTKIT55
Product Information
Product Information
Exhaust & Heat Exchangers SSI Package Porsche 911 1974-83 WITH 2 IN , 1 OUT EXHAUST

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.  

ssi Heat Exchangers & dansk Single Outlet Rear Silencer/Muffler 60mm Tail Pipe 92.211S

Powerful 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
91122092211S
90111115704
90111119300
91111319001
91110772910
91110773910
91133091911SSI
93021162201
91165911901

The product you are viewing cross references to these numbers
EXHAUSTKIT56
Product Information
Product Information
Exhaust & Heat Exchangers SSI Package Porsche 911 1974-83 WITH 2 IN , 2 OUT EXHAUST

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.  


ssi Heat Exchangers & dansk Twin Outlet Rear Silencer/Muffler 70mm Tail Pipe 92.511SD

Powerful 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
91133091911SSI
91122092511SD
91110772910
91110773910
90111115704
90111119300
91111319001

The product you are viewing cross references to these numbers
EXHAUSTKIT57
Product Information
Product Information
Exhaust & Heat Exchangers SSI Package Porsche 911 1974-83 WITH 2 IN , 1 OUT EXHAUST

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.  

ssi Heat Exchangers & dansk Single Outlet Rear Silencer/Muffler 70mm Tail Pipe 92.511S

Powerful 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
EXHAUSTKIT09
Product Information
Product Information
Exhaust Hardware Package Straight Though System

porsche

This set can be used when fitting the straight though system to Porsche 911 2.7L / 3.0L / SC / 3.2L. These parts will help with the air ducting and make a tidy finish instead of cutting holes on the existing tin ware

Fits:
Porsche 911 1974-83 2.7L / 3.0L
Porsche 911 1984-89 3.2L

Kit Includes:
- 2 x Side Tin Ware Left & Right
- 2 x End Tin ware with holes
-10 x Bolts Hex head
-10 x Washers
- 4 x Hose Clamps
- 2 x Heater Hoses

For more information about this product Click Here

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

EXHAUSTKIT09
91110608301
90110682500
90110682600
99907200501
N01152427
90121119401
99951234901
90110608400

The product you are viewing cross references to these numbers
EXHAUSTKIT12STD
Product Information
Product Information
Exhaust Single Outlet 60mm & Heat Exchangers System Porsche 911 1974-83 STANDARD size kit

1 x Stainless steel Sports exhaust 60mm outlet.
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel Standard cross over pipe.

Fits:
Porsche 911 2.7L / 3.0L 1974-83

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

EXHAUSTKIT12STD
91133091101S
91122092100S
91122092201S
93011116905
PCG91121100
92201KIT

The product you are viewing cross references to these numbers
EXHAUSTKIT12
Product Information
Product Information
Exhaust Single Outlet 84mm & Heat Exchangers System Porsche 911 1974-83

1 x Stainless steel Sports exhaust 84mm outlet.
2 x Stainless steel heat exchangers.
1 x Stainless steel Standard pre-silencer.
1 x Stainless steel cross over pipe.

This system offers more bhp and a fuller sound.

Fits:
Porsche 911 2.7L / 3.0L 1974-83

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

EXHAUSTKIT12
91133091101S
3606501101
93011116905
91122092502S

The product you are viewing cross references to these numbers
EXHAUSTKIT14
Product Information
Product Information
Twin outlet GT exhaust with RSR headers.

danskmotorsport

The photo you see the new Dansk exhaust fitted with Dansk manifold set on a Porsche 911 (1978) WITHOUT the lower rear valance panel.

Fits:
Porsche 911 1965-79 Engines from 2.0L to 2.7L

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

EXHAUSTKIT14
1620612200
1620101010
91.410
91410
91111102500
91111102505
90111101111
91022S
90121101101
91121102160
91121102210

The product you are viewing cross references to these numbers
DISPLAYING 1 to 9 (of 9 products)
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About Exhaust Packages

Porsche Performance Exhaust Packages - Power, Sound & Flow Upgrades

Exhaust Packages are complete performance exhaust solutions designed to improve exhaust gas flow, enhance engine efficiency, and transform the sound of your Porsche. By upgrading restrictive factory components with high-flow systems, exhaust packages help reduce backpressure, improve throttle response, and unlock additional performance—especially in tuned or performance-driven engines.

Available from Design911, Porsche exhaust packages combine precision-engineered components such as headers, sports catalysts, silencers, and tailpipes to deliver a balanced upgrade in power, sound, and durability.

What Do Exhaust Packages Do?

Exhaust packages manage the efficient removal of exhaust gases from the engine.

Core Functions:

  • Reduce exhaust backpressure for improved engine breathing.
  • Enhance power delivery and throttle response.
  • Improve exhaust sound and tone.
  • Optimise exhaust flow across the RPM range.
  • Support tuning and performance modifications.

Efficient exhaust flow is essential for maximising engine performance and responsiveness.

Why Do Standard Exhaust Systems Fail?

Factory exhaust systems are designed for noise control, emissions, and cost, which can lead to performance and durability limitations. Common issues include:

  • Restrictive pipework limiting airflow.
  • Internal corrosion from heat and moisture.
  • Catalyst degradation over time.
  • Excessive weight reducing performance efficiency.
  • Incompatibility with performance tuning upgrades.

Failing exhaust components can cause power loss, rattles, leaks, and reduced engine efficiency.

Why Upgrade to a Performance Exhaust Package?

Performance exhaust packages are engineered to improve flow, sound, and reliability.

Upgrade Benefits:

  • Increased power and improved throttle response.
  • Reduced system weight for better performance.
  • Enhanced exhaust sound without excessive drone.
  • Improved durability using stainless steel or motorsport materials.
  • Ideal foundation for further engine tuning.

Upgrading the exhaust system unlocks performance potential while enhancing driving enjoyment.

Highlights

  • Porsche performance exhaust package upgrades
  • Improved exhaust flow and power delivery
  • Enhanced sound quality and tone
  • Designed for tuned and performance engines
  • High-quality materials for long-term durability       

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