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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.
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Part Categories +
- Accessories
- Brakes
- Chassis / Bodywork
- Clothing & Gifts
- Electrical & Relays
- Engine Cooling
- Engine Electrical
- Engine Rebuild Parts
- Engine Tuning
- Exhausts
- Exterior Styling / Spoilers
- Gearbox / Transmission
- Heating / Air Conditioning
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- Incar / Multimedia
- Interior & Accessories
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- Pedal Cluster
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- Service Parts
- Special Offer Parts
- Steering Parts
- Suspension & Axle
- Suspension Upgrades
- Tyres
- Wheel Accessories
- Wheels
Original Porsche Part Genuine Porsche part 99704420001
Code: 99704420001
Genuine Porsche part
Original Porsche Part
Additional information:
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
Vehicle Group
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Price: £5,160.83
Orderable - 14 - 28 Days
Related products
99704420004
Product Information

The typical Porsche sound - powerful, robust, sporty. Better still, it can be further enhanced using this sports exhaust system. The sound varies with driving behavior, ranging from a robust out put during normal road driving to a distinctively more aggressive tone during performance use.
The mode of the sports exhaust system is selected using a button in the centre console, if this button is not already pre-fitted in your car you will need to order this with us by providing the chassis / VIN number when ordering.
The package includes:
- Tailpipes made of die cast aluminum.
- Two rear mufflers
- One Centre Muffler
- Exhaust straps clamps and wiring
Fits:
Porsche 997 MKII Carrera
Porsche 997 MKII Carrera S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420004
The product you are viewing cross references to these numbers
Product Information
Original Porsche "Switchable" Valve Sports Exhaust System
The typical Porsche sound - powerful, robust, sporty. Better still, it can be further enhanced using this sports exhaust system. The sound varies with driving behavior, ranging from a robust out put during normal road driving to a distinctively more aggressive tone during performance use.
The mode of the sports exhaust system is selected using a button in the centre console, if this button is not already pre-fitted in your car you will need to order this with us by providing the chassis / VIN number when ordering.
The package includes:
- Tailpipes made of die cast aluminum.
- Two rear mufflers
- One Centre Muffler
- Exhaust straps clamps and wiring
Fits:
Porsche 997 MKII Carrera
Porsche 997 MKII Carrera S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420004
99704420004
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: £3,419.03
Stock Due - No Delivery Date
99704420103
Product Information

The Porsche sound is a legendary mix of power, presence and athletic potential. Now you can make even more of your car with this stainless steel sports exhaust system. Sound output varies as throttle inputs change, from a standard note during normal road driving to a more aggressive tone under high-performance use. A soundproofing switch enables you to reduce noise output to standard levels when required. Includes stainless steel tailpipes with hard-chrome finish.
This product requires a extra switch which is not included in the kit you have two choices
1. 99761312900FHM Cars WITHOUT "PASM" electronic damper control
2. 99761313100FHM Cars WITH "PASM" electronic damper control
Fits:
Porsche 997 MK1 C2 / C4 / C2S / C4S 2005>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420103
The product you are viewing cross references to these numbers
Product Information
Exhaust Muffler / Silencer Sports System
The Porsche sound is a legendary mix of power, presence and athletic potential. Now you can make even more of your car with this stainless steel sports exhaust system. Sound output varies as throttle inputs change, from a standard note during normal road driving to a more aggressive tone under high-performance use. A soundproofing switch enables you to reduce noise output to standard levels when required. Includes stainless steel tailpipes with hard-chrome finish.
This product requires a extra switch which is not included in the kit you have two choices
1. 99761312900FHM Cars WITHOUT "PASM" electronic damper control
2. 99761313100FHM Cars WITH "PASM" electronic damper control
Fits:
Porsche 997 MK1 C2 / C4 / C2S / C4S 2005>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420103
99704420103
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Price: £5,160.83
Orderable - 14 to 28 Days
99761356301A05
Product Information

This is the switch required for the original Porsche sport exhaust system our part number code 99994420004
Please check your vehicle options
I030 -SPORT TYPE CHASSIS
I176 -SPORT EXHAUST (which you would be fitting)
I250 -PDK TRASMISSION
I475 -PASM ELECTRONIC DAMPER CONTROL
I476 -PORSCHE STABILITY MANAGEMENT PSM
I639 -SPORT CHRONO PACKAGE
I640 -SPORT CHRONO PACKAGE PLUS
Fits:
Porsche 997 MKII Carrera
Porsche 997 MKII Carrera S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761356301A05
The product you are viewing cross references to these numbers
Product Information
This is the switch required for the original Porsche sport exhaust 
This is the switch required for the original Porsche sport exhaust system our part number code 99994420004
Please check your vehicle options
I030 -SPORT TYPE CHASSIS
I176 -SPORT EXHAUST (which you would be fitting)
I250 -PDK TRASMISSION
I475 -PASM ELECTRONIC DAMPER CONTROL
I476 -PORSCHE STABILITY MANAGEMENT PSM
I639 -SPORT CHRONO PACKAGE
I640 -SPORT CHRONO PACKAGE PLUS
Fits:
Porsche 997 MKII Carrera
Porsche 997 MKII Carrera S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761356301A05
99761356301A05
99761356301
99704420004
99994420004
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: £220.45
Orderable - 14 to 28 Days
99761355301A05
Product Information

This is the switch required for the original Porsche sport exhaust system our part number code 99994420004
Please check your vehicle options
I030 -SPORT TYPE CHASSIS
I176 -SPORT EXHAUST (which you would be fitting)
I475 -PASM ELECTRONIC DAMPER CONTROL
I476 -PORSCHE STABILITY MANAGEMENT PSM
Fits:
Porsche 997 MKII Carrera 2009-2011
Porsche 997 MKII Carrera S 2009-2011
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761355301A05
The product you are viewing cross references to these numbers
Product Information
This is the switch required for the original Porsche sport exhaust 
This is the switch required for the original Porsche sport exhaust system our part number code 99994420004
Please check your vehicle options
I030 -SPORT TYPE CHASSIS
I176 -SPORT EXHAUST (which you would be fitting)
I475 -PASM ELECTRONIC DAMPER CONTROL
I476 -PORSCHE STABILITY MANAGEMENT PSM
Fits:
Porsche 997 MKII Carrera 2009-2011
Porsche 997 MKII Carrera S 2009-2011
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99761355301A05
99761355301A05
99761355301
99704420004
99994420004
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: £220.45
Orderable - 14 to 28 Days
99704420008
Product Information
Note: Only in conjunction with sports exhaust system or Carrera S power kit.

Price is for a Pair Left & Right
Fits:
Porsche 997 Carrera 2 / Carrera 2S 2009-12
Porsche 997 Carrera 4 / Carrera 4S 2009-12
Porsche 997 Targa 4 / Targa 4S 2009-12
Porsche 997 Carrera GTS 2009-12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420008
The product you are viewing cross references to these numbers
Product Information
Exhaust 911 Carrera GTS Sports Tail Pipes. 2 twin tailpipes in a unique 911 Carrera GTS design.Note: Only in conjunction with sports exhaust system or Carrera S power kit.

Price is for a Pair Left & Right
Fits:
Porsche 997 Carrera 2 / Carrera 2S 2009-12
Porsche 997 Carrera 4 / Carrera 4S 2009-12
Porsche 997 Targa 4 / Targa 4S 2009-12
Porsche 997 Carrera GTS 2009-12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99704420008
99704420008
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: £838.63
Orderable - 14 to 28 Days
99711198
Product Information

Note: Not in conjunction with sports exhaust system or Carrera S power kit including sports exhaust system
Fits:
Porsche 997 Carrera 2 / Carrera 2S 2009-12
Porsche 997 Carrera 4 / Carrera 4S 2009-12
Porsche 997 Targa 4 / Targa 4S 2009-12
These stainless steel, nanocoated tailpipes give the rear of your 911 a more powerful look. The nanocoating makes them easier to clean and provides a striking effect.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711198
The product you are viewing cross references to these numbers
Product Information
Exhaust Sports Tail Pipes. 997 MKII without PSE
Note: Not in conjunction with sports exhaust system or Carrera S power kit including sports exhaust system
Fits:
Porsche 997 Carrera 2 / Carrera 2S 2009-12
Porsche 997 Carrera 4 / Carrera 4S 2009-12
Porsche 997 Targa 4 / Targa 4S 2009-12
These stainless steel, nanocoated tailpipes give the rear of your 911 a more powerful look. The nanocoating makes them easier to clean and provides a striking effect.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99711198
99704420010
99711198430
99711198330
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Select side
Prices from: £419.32
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