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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

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DISPLAYING 1 to 6 (of 6 products)
POWERKIT9962
Product Information
Product Information
Exhaust Package + Headers + Plenum 74mm Throttle Body + Air Filter Kit Porsche 996 Turbo

Kit Includes
- High Flow Air Filter
- Plenum by IPD
- Throttle Body 74mm
- Exhaust Boxes
- Sports Cats 200 cell
- Equal Lenght Headers K16

Sports Exhaust Muffler DesignTek VALVETRONIC system with 200 SPORTS CELL CATS. + Headers.

High Grade stainless steel equal length headers.K16 Sport stainless steel headers have been designed to increase HP and TQ on cars fitted with the OEM K16 turbochargers. The short design is perfectly matched for the exhaust travel from the heads to the K16 turbo for better boost response and power throughout the rev range. The smooth flow through the mandrel bends and pyramid merge collector offer superior flow characteristics as compared to the OEM headers. Power gains are increased by 14 HP and 16 Ft. TQ with no other modifications.Adds up to 14 HP / 16 Ft. TQ

For the ultimate performance gains we recommend this set is fitted with an ECU remap giving BHP and Torque that you can really feel and superb sports car sound.

NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.

For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.

If you are located outside the UK, please check your local laws and regulations to ensure compliance.

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Related, superseded, cross reference or alternative numbers for comparison.

POWERKIT9962
3606009616
3606309603
96274
99760511502
33-2189

The product you are viewing cross references to these numbers
POWERKIT9963
Product Information
Product Information
Exhaust Package + Plenum 74mm Throttle Body + Air Filter Kit Porsche 996 Turbo

Kit Includes
- High Flow Air Filter
- Plenum by IPD
- Throttle Body 74mm
- Exhaust Boxes
- Sports Cats 200 cell

Sports Exhaust Muffler + Cats 200 cell DESIGNTEK 200CPSI Hi-Flow sports catalysts+ Headers. Fits with original tail pipes.

For the ultimate performance gains we recommend this set is fitted with an ECU remap giving BHP and Torque that you can really feel and superb sports car sound.

NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.

For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.

If you are located outside the UK, please check your local laws and regulations to ensure compliance.

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

POWERKIT9963
3606009608
96274
99760511502
33-2189

The product you are viewing cross references to these numbers
3606009607
Product Information
Product Information
designtek
Exhaust Muffler / Silencer Titanium with Catalytic Converter Twin Chamber Design Weight: 9.90Kg

DesignTek Titanium Super light weight Sport exhaust system. Original Porsche system weight 48Kg, DesignTek Titanium system just 9.90Kg. 996TT / X50/ GT2 / 997 Turbo exhaust system with two 200 cell stainless steel cased German Motorsports Race Cats.

Fits:
Porsche 996 Turbo
Porsche 996 GT2

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

3606009607
99611102775
99611102776
99611198775
99611198777

The product you are viewing cross references to these numbers
3606009608
Product Information
Product Information
Exhaust Muffler / Silencer Titanium with Catalytic Converter Single Chamber Design Weight: 9.50Kg

designtek

DesignTek Titanium Super light weight Sport exhaust system. Original Porsche system weight 46Kg, DesignTek Titanium system just 9.50Kg.996TT / X50/ GT2 / 997 Turbo exhaust system with two 200 cell stainless steel cased German Motorsports Race Cats.

Fits:
Porsche 996 Turbo

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

3606009608
99611102775
99611102776

The product you are viewing cross references to these numbers
3606009605
Product Information
Product Information
Exhaust Muffler / Sports Exhaust System DesignTek. Porsche 996 Turbo 200 Cell cats with option for De-cat

designtek

High quality exhaust system for the Porsche 996 Turbo. Manifold back exhaust that includes 200 Cell Sports Cats and does not include tailpipes or manifolds.

The silencers in this exhaust are linked to one another, creating a greater balance between the two silencers which improves flow, performance and provides a sports sound. It is an aftermarket, performance exhaust with a louder note and boasts significant power gains over OE due to a free-flowing, mandrel bent, TIG welded system. The cats are about as powerful as we could get onto the Porsche 911 Turbo while still passing the MOT!

*Removable Cats can be replaced with DesignTek bypass pipes 3606009655. Bypass pipes are for track use only.

DesignTek system fits with original Porsche tail pipes or DesignTek tail pipes.

Fits:
Porsche 996 Turbo 2000-05
Porsche 996 GT2

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

3606009605
99611102775
99611102776
99611198775
99611198777

The product you are viewing cross references to these numbers
3606009618
Product Information
Product Information
DesignTek Sports exhaust produced to give a great deep sports car super sound that every 996 turbo driver desire.

designtek

Fits:
Porsche 996 Turbo

*This product is fitted with 200 Cell sports cats and may require a ECU re-map when fitting.

DesignTek 996 Turbo Sport exhaust fitted with 200 cell sports high flow catalytic converters. The system is produced with high flow stainless steel tubing and fixed together with T316 Lsi welded joints. Each bend section is produced by automated CNC plasma cutting equipment and mandrel bending machinery to give the ultimate finish, flow and power.

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

3606009618
125949
55-PS103
99611102775
99611102776
99611198775
99611198777

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
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About Sport Silencers / Mufflers

Porsche Sport Silencers & Mufflers - Performance Sound & Exhaust Upgrades

Sport Silencers / Mufflers are designed to enhance the sound, performance, and driving character of your Porsche by improving exhaust gas flow and delivering a more engaging exhaust note. Compared to standard exhaust silencers, sports mufflers reduce restriction, sharpen throttle response, and provide a sportier tone that better reflects Porsche’s performance heritage.

Available from Design911, this category includes both genuine Porsche sport exhaust components and high-quality aftermarket performance mufflers, giving owners the choice between factory-engineered authenticity and performance-focused customisation.

What Do Sport Silencers / Mufflers Do?

Sport silencers optimise exhaust flow while enhancing sound quality.

Core Functions:

  • Reduce exhaust backpressure for improved engine breathing.
  • Enhance throttle response and power delivery.
  • Produce a deeper, sportier exhaust note.
  • Improve exhaust efficiency and flow dynamics.
  • Enhance the overall driving experience.

A well-designed sports muffler balances performance gains with refined sound control.

Why Do Standard Exhaust Silencers Fail or Fall Short?

Standard exhaust mufflers are designed primarily for noise reduction, emissions compliance, and longevity. Over time, common issues include:

  • Internal corrosion from condensation and heat cycles.
  • Restrictive baffling limiting exhaust flow.
  • Dull or muted exhaust sound.
  • Internal baffle breakdown causing rattles.
  • Reduced efficiency when paired with performance upgrades.

As these components age, both performance and sound quality can deteriorate.

Why Upgrade to Sport Silencers / Mufflers?

Sport silencers are engineered to improve both performance and auditory feedback.

Upgrade Benefits:

  • Improved exhaust flow and reduced restriction.
  • Enhanced exhaust sound without excessive drone.
  • Increased driving engagement and responsiveness.
  • Available in OEM Porsche or performance aftermarket options.
  • Ideal for road, touring, and spirited driving.

Upgrading delivers a more exciting exhaust character while supporting engine efficiency.

Highlights

  • Porsche sport silencer and muffler upgrades
  • OEM Porsche and premium aftermarket options
  • Improved exhaust sound, flow, and performance
  • Designed for performance-focused driving
  • High-quality materials for durability and reliability       

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