All Silencers / Mufflers

- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Cayman 2.7L 987C 2006-08
Kit Includes
- Air Induction Kit
- Plenum by IPD
- Throttle Body 74mm
- Milltek Exhaust Cat back
Fits:
Porsche Boxster 987
Porsche Cayman 987C
Exhaust Muffler / Silencer Rear box (Catalysts Bypass System).
Sports deep sound muffler/exhaust offers a sportive sound and better throttle response. With secondary cat bypass to increased BHP. Milltek system is complete twin adjaustable stainless steel tails. Made from T304 stainless steel.
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.
This kit is comprised of the following items:





- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Sport exhaust
- Manifolds with HJS 200 Cell catalysts.
- Clamps, gaskets, bolts, nuts, manifold bolts etc.
(Complete fitting kit).

This system will be a bit louder than standard system as it comes with reduced catalyst and sport exhaust.
Fits:
Porsche 987 Boxster 2.7L MKI
Porsche 987S Boxster 3.4L MKI
Porsche 987C Cayman 2.7L MKI
Porsche 987C S Cayman 3.4L MKI
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EXHAUSTKIT87
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This kit is comprised of the following items:




- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 30
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98710444500
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche 987.1 Boxster 2.7L / 3.2L 2005-08
Porsche 987C.1 Cayman 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 19
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98711135300
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Polished stainless steel.
Equipment with 200 cells cats
Material Stainless Steel
Fits:
Porsche Boxster 987 MKI 2.7L / 3.4L 10/2004-
Porsche Cayman 987C MKI 2.7L / 3.4L 07/2006-
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98722098300S
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

Fits:
Porsche Boxster 987 MKI 2.7L / 3.4L 10/2004>>
Porsche Cayman 987C MKI 2.7L / 3.4L 07/2006>>
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98722098301S
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Fits:
Porsche 987.1 Boxster / Boxster S - 2005 to 2008
Porsche 987.1 Cayman / Cayman S - 2005 to 2008
Ideal for enthusiasts seeking a more conservative sound enhancement, this muffler is particularly suited for those running cat bypass or sport cats who want to avoid excessive noise levels. At low RPMs and during cruising, it delivers a refined, deep tone that remains discreet. Designed to comply with Germany's stringent urban decibel regulations, this is a German Edition muffler built for subtle performance.
DesignTek offers a wide selection of mufflers to suit diverse preferences, ranging from mild, street-friendly options to exotic-sounding sport mufflers and high-intensity race mufflers. The DesignTEk Edition 987.1 street muffler stands apart from conventional aftermarket designs.
Crafted from German V2A - X5CrNi18-10 - 1.4301 (T-304 L) lightweight stainless steel, it incorporates advanced features like double perforated sound absorption tubes in a trapezoidal pattern with variable perforation diameters. This design effectively isolates and dampens unwanted drone frequencies. Additional stamped ribbing on the outer shell further reduces unwanted resonance, achieving superior acoustic performance.
Unlike traditional baffle plates, this design minimizes back pressure, particularly at higher gas velocities, resulting in improved throttle response and enhanced performance across the rev range. When combined with software tuning, upgraded intakes, or additional exhaust modifications, the benefits are even more pronounced.
This muffler offers a subtle factory motorsport sound, making it an excellent choice for those who desire a conservative sport tone. Its reduced decibel output ensures it remains suitable for vehicles equipped with sport cat or cat bypass headers, maintaining an enjoyable sound without becoming overly loud.
Each system undergoes rigorous testing for exhaust gas flow, thermal durability, resistance to cracking, and long-term reliability, ensuring exceptional quality and performance.
Features:
- Increases by 9 HP and 11 TQ
- Weighs 43 lbs. (19.5 Kg)
- German V2A - X5CrNi18-10 - 1.4301 (T-304 L) stainless steel for improved durability
- Includes dual round 3.5” (90mm) tips
- Direct bolt on replacement
- Increased decibels with an exclusive, exotic motorsport sound
- Software programming is not necessary
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87050
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

DesignTek sports deep sound muffler/exhaust offers a sportive sound and better throttle response. With secondary cat bypass to increased BHP. Complete twin adjaustable stainless steel tails
Made from T304 stainless steel.
Fits:
Porsche Boxster 987 MK1
Porsche Cayman 987C MK1
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3606008703
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

DesignTek Valvetronic sports exhaust system gives smooth 12Bhp/15 ft-lbs of torque to the wheels with the valves opened, +8HP/10 ft-lbs of torque to the wheels with the valves closed. Made from high quality 14-16 gauge T304 stainless steel, hydro-formed muffler cases, radiuses stressed relieved with 2000 degree ceramic fiber and stainless steel wool packed free flow mufflers.
This unique exhaust configures a dual-tone setup controlled by a key fob which you can switch on the fly. Direct replacement for the factory mufflers and will work with the stock primary pipe and cats or DesignTek primary bypass pipe.
High-Performance Rear Exhaust with sound switch:
● Push the sound-button between:
Switch closed: Deep Sports Turbo Sound
Switch opened: Perfect Racing Sports Sound
Superb sports car sound, throaty and deep with the valves opened, but docile with the valves closed.
This system comes complete with stainless steel tail pipes.
Please note the remote controllers do not come with batteries. You will have to source them at your own cost. The type is CR2025
Fits:
Porsche Boxster 987 GEN1
Porsche Cayman 987c GEN1
For Wiring Diagram please CLICK HERE
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3606008704
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

The acoustics of this dual-mode sports exhaust system are dependent on driving style, ranging from standard output during normal road driving to a more aggressive tone during performance use. Modes are selected using a button on the centre console (or 'Sport' mode button on vehicles with optional Sport Chrono Package/Sport Chrono Package Plus). if you need the switch console order part number 99761312900FHM
Please Note:
If the vehicle does not have the factory option of Sport Chrono Package/Sport Chrono Package Plus an extra wire harness is required. Part No.99761290501
Fits:
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2007>>
For Wiring Diagram please CLICK HERE
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98704420001
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Pipe Ø: 2.13" (54.00mm)
Tip style: Twin 90mm Special

Fits:
Porsche 987 Gen1 Boxster 2.7L 2004-09
Porsche 987 Gen1 Cayman 2.7L 2006-09
Porsche 987 Gen1 Boxster S 3.2L 2004-09
Porsche 987 Gen1 Cayman S 3.4L 2006-09
Parts Assembly:
MSPO177: LH Rear Cat Replacement Silencer Assembly
MSPO178: RH Rear Cat Replacement Silencer Assembly
MSPO237: LH Rear Silencer Assembly
MSPO238: RH Rear Silencer Assembly
MSTIP152 x2: Polished Tip Assembly





- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Pipe Diameter: 2.13" (54.00mm)

Fits:
Porsche 987 Gen1 Boxster 2.7L 2004-09
Porsche 987 Gen1 Cayman 2.7L 2006-09
Porsche 987 Gen1 Boxster S 3.2L 2004-09
Porsche 987 Gen1 Cayman S 3.4L 2006-09
Parts Assembly:
MSPO177: LH Rear Cat Replacement Silencer Assembly
MSPO178: RH Rear Cat Replacement Silencer Assembly
MSPO237: LH Rear Silencer Assembly
MSPO238: RH Rear Silencer Assembly
MSTIP155 x2: Ceramic Black Tip Assembly





- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Porsche 987 Gen 1 Boxster and Cayman (2005-2008)
Removes catalytic converters

Fits:
Gen 1 2005-2008
Porsche Boxster 2.7Ltr
Porsche Boxster 3.2Ltr and 3.4Ltr
Porsche Cayman 2.7L
Porsche Cayman 3.4Ltr
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector
CATALYTIC CONVERTER REMOVAL
Complete removal of the catalytic converter minimises exhaust back pressure and delivers optimum results in terms of performance and weight reduction
ECU REMAPPING - ENGINE LIGHT
Replacement or removal of components such as catalytic converters and electric actuators may cause the engine warning light to come on. In this case, the installer must reprogram the software to eliminate the light
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand
MATERIAL - AISI 304 STAINLESS STEEL
AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
MAIN PIPE DIMENSION - 57mm
This is the diameter of the main pipe of the exhaust system
EXHAUST VALVE - NO VALVE
The exhaust system does not include a valve and always guarantees the most impressive sound. If the standard system includes one, control of the valve by both the engine ECU and by the pilot via the specific control systems is no longer possible
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.





- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Porsche 987 Boxster and Cayman Gen 1 (2005-2008)
Reduced cell catalytic converter and sports exhaust

Fits:
Gen 1 2005-2008
Porsche Boxster 2.7Ltr
Porsche Boxster 3.2Ltr and 3.4Ltr
Porsche Cayman 2.7L
Porsche Cayman 3.4Ltr
The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector
REDUCED CATALYTIC CONVERTER CELLS - 300
Race catalytic converters have fewer cells than standard factory systems. This reduces exhaust back pressure while still cutting pollutant emissions and boosts power and sound
ECU REMAPPING - ENGINE LIGHT
Replacement or removal of components such as catalytic converters, GPFs and electric actuators may cause the engine warning light to come on. In this case, the installer must reprogram the software to eliminate the light
SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand
AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal
MAIN PIPE DIMENSION 55mm
This is the diameter of the main pipe of the exhaust system
Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.





- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

No EC type approval
Fits 2006-2009
987 Boxster 2.7ltr
987 Boxster S 3.2ltr, 3.4ltr
987 Cayman 2.7ltr
987 Cayman S 3.2ltr, 3.4ltr
RACING stainless steel sport exhaust system with left and right hand silencers (without tail pipes)
From catalytic convertors backwards, no secondary catalytic convertors fitted
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- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 2S 3.8L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
- Porsche 997 Carrera 4S 3.8L 2005>>
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
This is the switch required for the original Porsche sport exhaust system our part number code 99994420103
Fits:
For cars WITHOUT "PASM" electronic damper control
Porsche 997 MKI Carrera
Porsche 997 MKI Carrera S
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99761312900FMH
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Title: Upgrading Your Porsche's Exhaust System: Original Porsche vs. Aftermarket Mufflers and Sports Exhaust
Keywords: Porsche, exhaust mufflers, sports exhaust, upgrade, replacement, technical specifications, known issues, Design911, professional advice
Summary:
Original Porsche Exhaust Mufflers:
Designed and manufactured by Porsche for specific models
Engineered to meet stringent quality standards
Precisely tuned for optimal performance and sound
Maintains the authenticity and originality of your Porsche
Compatible with existing components and systems
Aftermarket Exhaust Mufflers:
Produced by third-party manufacturers specializing in performance upgrades
Offer a wide range of options for customization
Can enhance exhaust note, performance, and aesthetics
May provide better flow dynamics for improved engine efficiency
Consider compatibility and fitment with your Porsche model
Sports Exhaust Systems:
Designed to maximize performance and enhance the driving experience
Typically include larger diameter pipes, sportier mufflers, and optimized airflow
Offer increased horsepower and torque
Produce a more aggressive and exhilarating exhaust sound
Check local regulations regarding noise restrictions
When considering purchasing an exhaust muffler or sports exhaust for your Porsche, several factors should be considered. Firstly, determine your specific requirements, whether it's a slight improvement in sound or a significant performance boost. Research the technical specifications and compatibility of the chosen exhaust system with your Porsche model. Consider your budget and the reputation of the manufacturer or retailer. It's crucial to ensure the product is backed by warranties or guarantees.
At Design911, we can assist you in finding the correct exhaust part for your Porsche. Our knowledgeable team can offer professional advice based on your requirements and guide you through the selection process. We stock a wide range of original Porsche parts as well as reputable aftermarket options, ensuring you have access to high-quality choices. Trust Design911 to help you enhance your Porsche's performance and provide an unmatched driving experience.
Note: The summary provided above is a general overview of the benefits and considerations related to upgrading the exhaust system of a Porsche vehicle. It's always recommended to consult with a professional and consider individual vehicle specifications and regulations before making any modifications.