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Dansk Motorsport
Dansk Motorsport for Porsche
Dansk Motorsport is the performance and sport line of Dansk Original, created for Porsche owners who want a more engaging exhaust sound and a more purposeful look than standard systems, especially on air‑cooled 911 models up to and including the 964.
A Quick Look at Dansk Motorsport
Dansk Motorsport information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.
Choosing the Right Fit for Your Porsche
Where Dansk Motorsport is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, engine type, silencer layout (number of inlets/outlets), and tailpipe style or connector type where relevant.
- Typical reasons people choose Dansk Motorsport exhausts include wanting a sportier tone, better exhaust flow, and durability suited to higher heat loads.
- Common symptoms that lead to exhaust replacement include drone, rattles, leaks at joints, cracked welds, and fatigue around brackets after repeated heat cycles.
- Practical tip: refresh exhaust mounts and align the system correctly before final tightening to minimise drone, stress on brackets, and rattles.
- Practical tip: if you plan track use or louder systems, consider local noise limits and any additional silencing or valve control you may need.
Browse by Category
If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.
Exhausts — Exhaust systems are usually replaced to cure leaks or corrosion, or to change the sound and flow characteristics; Dansk Motorsport offers sport-focused options where listed so you can balance tone, flow, and comfort for your Porsche.
- When changing exhausts, consider replacing gaskets, clamps, mounts, and any rusted fixings at the same time.
- Be aware that altering catalytic converters or overall noise levels can have emissions and MOT implications depending on local regulations.
1 IN / 2 OUT Sports Silencers — This layout is chosen when you want twin tailpipes from a single inlet path, combining a sportier sound and twin-exit styling with the existing exhaust routing on suitable Porsche models.
- Check that outlet spacing and tailpipe size match your rear bumper cut-outs and that heat around the bumper is properly managed.
- Remember that overall silencer design, not just the number of outlets, has the biggest influence on loudness and drone.
All Silencers / Mufflers — This category lets you compare standard, sport, and valve-controlled layouts where available; it is often used when owners are still identifying which configuration their Porsche uses or deciding how much sound and comfort they want.
- Confirm your existing silencer layout by counting inlets/outlets and checking hanger positions before ordering.
- Clamps, gaskets, mounts, and new fixings are usually recommended when changing silencers, especially on older or corroded systems.
Catalyst / Bypass — Catalysts are replaced when they fail emissions tests, rattle internally, or become restrictive; bypass options, where offered, are generally aimed at track or off-road applications, so legal and emissions requirements for road use must always be checked first.
- A partially blocked catalytic converter can reduce power and cause overheating or warning lights.
- Bypass or sports cat changes may trigger engine warning lights or affect legality unless the system and calibration are matched to local rules.
Heat Exchangers — On air-cooled and some classic Porsche exhaust layouts, heat exchangers handle both exhaust flow and cabin heating; they are replaced when they rust, leak, or lose heating efficiency, or when upgrading for better durability and performance.
- An exhaust smell in the cabin is a serious safety concern and should be investigated immediately due to possible CO exposure.
- Alongside the exchangers themselves, check heater ducts, flaps, and all related sealing surfaces for leaks or damage.
Explore Dansk Motorsport at Design911
View the current Dansk Motorsport range for Porsche at Design911, then filter by model and category to narrow down to the parts that best suit your exhaust layout, sound preference, and intended use.
The 3 pipes from the engine are 42mm ID inside, and the pipes that connects are 47mm ID inside.

Fits:
Porsche 911 2.0L to 2.7L - 1965 to 1977
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620101010
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Fits:
Porsche 964 C2 / C4 1990-94
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.
1620301400
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93

Fits:
Porsche 911 T/E/S (not mech. injection) 2.0-2.4L 01/1963-07/1973
Porsche 911 S 2.4L 08/1971-07/1973
Porsche 911 S (mech. injection) 2.4L 08/1971-07/1973
Porsche 911 S (mech. injection) 2.7L 08/1973-07/1975
Porsche 911/911 S/911 Carrera 2.7L 08/1973-07/1975
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
16231019
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Fits:
Porsche 911 T / E / S (not mech. injection) 2.0-2.4L 01/1963-07/1973
Porsche 911 S (mech. injection) 2.4L 08/1971-07/1973
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91122092520DUAL
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 T / E / S 2.0-2.4L 1964-73
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91122092515DUAL
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Painted steel.
Overall length: 36cm

Fits:
Porsche 914/6 2.0L 11/1969-12/1973
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620401210
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)
Has to be used together with:
- 1623101970 / 1623101980 racing type manifolds
- 1620401210 connector tubes

Fits:
Porsche 914/6 2.0L 11/1969-12/1973
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620607100
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)

Fits:
Porsche 356 B / C
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620703710
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 A 1.6L 08/1950-07/1964
Porsche 356 B model T.5 Europe 1.6L 08/1950-07/1964
Porsche 356 B all/C export - USA 1.6L 08/1950-07/1964
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620603900
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 356 B/C 1.6-2.0L 01/1959-12/1965
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1620610300
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65

Fits:
Porsche 911 T / E / S 2.0-2.4L 1964-73
Porsche 911 / S / CARRERA 2.7L 1974-76
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91122092510DUALS
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Polished stainless steel. With TUV/ EEC Approval.

Fits:
Porsche 911 1965-73 Non Impact Bumper Cars
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91122092510SD
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche Boxster 986 2.5L 1997-99
Exhaust rear, Sport, with one 155x83 mm oval tailpipe.
Made of stainless steel with TÜV/EEC approval
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98622094201S
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
Painted steel.
NOTE: 91122092212 needs to be fitted the exhaust on 1623101970 and 1623101980.

Fits:
Porsche 911 T/E/S 2.0-2.4L 1964-73
Porsche 911 /S/CARRERA 2.7L 1974-76
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91122092212
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Polished stainless steel.

Fits:
Porsche 997 3.8L C2S /C4S 08/2004-07/2008
Porsche 997 3.6L C2 /C4 08/2004-07/2008 *** please also use tail pipe 99711197901S
Output flange 2.25" / 58mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99722097300S
The product you are viewing cross references to these numbers
- 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

Fits:
Porsche 997 3.8L C2S /C4S 08/2004-07/2008
Porsche 997 3.6L C2 /C4 08/2004-07/2008 *** please also use tail pipe 99711197901S
Output flange 2.25" / 58mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99722097300SEXP
The product you are viewing cross references to these numbers
- 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