do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
The Fabspeed Porsche 944 Turbo (951) Turbo Outlet Top Pipe is a high-performance stainless steel exhaust upgrade designed to improve exhaust gas flow, turbocharger efficiency and overall engine performance on Porsche 944 Turbo models manufactured between 1985 and 1991.
Fits:
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Developed to replace the restrictive and failure-prone factory turbo outlet pipe, this upgraded component features a larger 2.75-inch (70mm) diameter construction that allows exhaust gases to flow more efficiently from the turbocharger to the original exhaust downpipe.
The factory Porsche 944 Turbo outlet pipe uses a double-walled design that can deteriorate and collapse internally over time, restricting exhaust flow and reducing engine performance. Fabspeed's upgraded pipe eliminates this restrictive construction, helping maintain a consistent exhaust gas passage and improving turbocharger response.
Manufactured from premium T304L stainless steel, the pipe features precision-machined flanges, mandrel-bent tubing and high-quality TIG-welded joints for excellent durability, corrosion resistance and long-term reliability.
Fabspeed reports performance improvements of approximately 10 horsepower and 8 lb-ft of torque, together with a weight reduction of approximately 5 lb (2.3kg), compared with the original factory component. Actual results will vary depending on vehicle condition and configuration.
Designed as a direct bolt-on replacement, the pipe connects the turbocharger outlet to the factory exhaust downpipe without requiring cutting or welding.
Ideal for Porsche 944 Turbo owners seeking improved performance, enhanced turbocharger response and a durable replacement for an ageing original exhaust component.
What This Product Does:
The Fabspeed Turbo Outlet Top Pipe carries exhaust gases away from the turbocharger turbine outlet and towards the exhaust downpipe. Its larger internal diameter and free-flowing construction help reduce exhaust restriction immediately after the turbocharger.
By improving exhaust gas discharge, the pipe supports efficient turbocharger operation and helps the engine deliver more responsive performance.
Its key functions include:
- Improved Exhaust Gas Flow: The larger 2.75-inch (70mm) pipe diameter provides a less restrictive path for exhaust gases leaving the turbocharger.
- Enhanced Turbocharger Response: Reduced exhaust backpressure can help the turbocharger operate more efficiently and improve boost response.
- Increased Horsepower and Torque: Improved exhaust flow can support additional engine power, with Fabspeed reporting gains of approximately 10 horsepower and 8 lb-ft of torque.
- Reduced Exhaust Restriction: Replaces the original double-walled factory pipe, which can collapse internally and restrict exhaust flow.
- Improved Throttle Response: Reduced restriction can contribute to more responsive acceleration and power delivery.
- Reduced Component Weight: Fabspeed reports a weight saving of approximately 5 lb (2.3kg) compared with the original pipe.
- Enhanced Turbo Sound: The larger free-flowing design can produce a modest increase in exhaust volume and turbocharger sound.
- Corrosion Resistance: T304L stainless steel construction provides excellent resistance to moisture, road salt and exhaust system corrosion.
- Improved Durability: Mandrel-bent tubing, precision-machined flanges and TIG-welded construction provide a robust, long-lasting exhaust component.
- Direct Replacement Fitment: Connects to the existing turbocharger and OEM downpipe without requiring cutting or welding.
Symptoms Of Wear Or Failure:
The original Porsche 944 Turbo outlet pipe is known for potential internal deterioration and collapse of its double-walled construction. As the pipe ages, exposure to extreme exhaust temperatures, vibration and corrosion can affect its structural integrity and restrict exhaust gas flow.
Common signs include:
- Reduced Engine Performance: A partially collapsed or restricted turbo outlet pipe may limit exhaust flow, resulting in reduced horsepower and acceleration.
- Sluggish Turbocharger Response: Excessive exhaust restriction after the turbocharger can contribute to delayed boost response and slower acceleration.
- Loss of Power at Higher RPM: A restricted exhaust outlet may prevent the engine from delivering its expected performance at higher engine speeds.
- Internal Pipe Collapse: Deterioration of the original double-walled construction may reduce the effective internal diameter, restricting exhaust flow.
- Increased Exhaust Backpressure: A damaged or obstructed outlet pipe may create excessive resistance to exhaust gases leaving the turbocharger.
- Exhaust Leaks: Cracked pipework, damaged flanges or deteriorated gaskets may allow exhaust gases to escape around the turbocharger outlet connection.
- Metallic Rattling Noises: Loose or deteriorated internal pipe material may produce rattling or vibration-related noises.
- Visible Corrosion: Rust, surface deterioration or corrosion around the original pipe may indicate weakening of the exhaust component.
- Cracked or Damaged Welds: Repeated heating and cooling cycles can contribute to fatigue and cracking around pipe joints.
- Unusual Exhaust Noise: Exhaust leaks or damaged pipework may cause louder-than-normal exhaust sounds.
- Reduced Turbo Efficiency: Excessive restriction can negatively affect turbocharger operating conditions and overall engine responsiveness.
Why Replacement Matters:
- Replacing a worn, internally collapsed or restrictive turbo outlet pipe is an important step in maintaining the performance, efficiency and reliability of your Porsche 944 Turbo.
- The turbocharger relies on efficient exhaust gas flow to operate effectively. Once exhaust gases have passed through the turbine, they must be discharged through the exhaust system with minimal unnecessary restriction.
- The original double-walled turbo outlet pipe can deteriorate with age and prolonged exposure to high temperatures. If its internal structure collapses, it can create a significant restriction immediately after the turbocharger, increasing backpressure and reducing engine performance.
- Installing the Fabspeed Turbo Outlet Top Pipe replaces this vulnerable original design with a larger, single-wall stainless steel construction, helping maintain a clear and efficient exhaust flow path.
- The improved design can enhance turbocharger response, support stronger acceleration and allow the engine to perform more effectively throughout its operating range.
- Replacing the original component also helps address concerns associated with ageing exhaust hardware, including corrosion, cracking and deterioration of internal pipe material.
- Unlike the original factory construction, the Fabspeed pipe uses durable T304L stainless steel with precision-machined flanges and TIG-welded joints, providing improved resistance to long-term environmental and thermal exposure.
- The direct bolt-on installation makes it a practical upgrade for owners carrying out exhaust maintenance, turbocharger repairs or performance modifications without the need for extensive fabrication.
- For Porsche 944 Turbo enthusiasts, replacing the original pipe is both a performance enhancement and a preventative maintenance measure, particularly on vehicles retaining their original exhaust components.
- The Fabspeed Porsche 944 Turbo Outlet Top Pipe offers a durable, performance-focused replacement solution, helping restore efficient exhaust flow, improve turbocharger response and preserve the driving characteristics of the classic Porsche 944 Turbo.
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.