Manifold / Headers

DesignTek Stainless Steel Exhaust Manifold / Header Equal Length.



Fits:
Porsche 996 Turbo
Porsche 997 Turbo MKI

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3606309708

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Titanium exhaust manifold bolts M8x27. Torx head.
Pack of 18 pcs.



Fits:
Porsche 996 Turbo / GT2 / GT3 1999-2005
Porsche 997.1 Turbo / GT2 / GT3 2007-2009
Porsche 997.2 Turbo / GT2 RS / GT3 2010-2013

Porsche 991 Turbo / Turbo S / GT2RS  2014-2020

Titanium is a highly corrosion-resistant material, which is particularly important in exhaust systems due to the exposure to extreme heat and moisture. The corrosion resistance of titanium bolts ensures longevity and reduces the risk of premature failure, ultimately saving the owner from costly repairs.

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Diagram ref no 9

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TITANTORXLONG18

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Titanium exhaust manifold bolt M8x27. 
Set of 12  (OE Ref: 99907358901) 



Titanium is a highly corrosion-resistant material, which is particularly important in exhaust systems due to the exposure to extreme heat and moisture. The corrosion resistance of titanium bolts ensures longevity and reduces the risk of premature failure, ultimately saving the owner from costly repairs.

Fits:
Porsche 986 Boxster 1997-2004
Porsche 987 Boxster 2005-2008
Porsche 987C Cayman 2006-2008
Porsche 996 Carrera 1998-2004
Porsche 997.1 Carrera 2005-2008
Porsche 718 (982) Boxster 2017-2021
Porsche 718 (982C) Cayman 2017-2021

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Diagram ref no 3

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TITANTORXLONG12

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Fabspeed Sport Headers.

The Fabspeed Porsche 996 Carrera Sport Headers are high-performance exhaust manifolds designed to improve exhaust flow, engine response and the characteristic sound of the Porsche flat-six engine.

Fits:

• Porsche 996 C2 3.6L 1999-2004
• Porsche 996 C4 3.6L 1999-2004

  
Replacing the restrictive factory-style exhaust manifolds, the Fabspeed headers use equal-length, CNC mandrel-bent primary tubes to improve exhaust-gas scavenging and balance exhaust pulses between cylinders.

The headers terminate in specially designed F1-style merge collectors, creating a smoother transition for exhaust gases compared with the factory log-style collector arrangement.

Designed as a direct bolt-on replacement for the original headers, they provide a performance upgrade without requiring replacement of the entire exhaust system.

What This Product Does:
Exhaust headers collect exhaust gases leaving each cylinder and direct them towards the rest of the exhaust system.

The factory exhaust manifold must perform the same basic function, but its design can create restrictions and less-efficient interaction between individual exhaust pulses.

The Fabspeed Sport Headers are designed to provide a smoother and more efficient route for exhaust gases leaving the engine.

Their equal-length primary design helps coordinate exhaust pulses before they reach the collector.

This is intended to improve:

• Exhaust-gas flow
• Exhaust scavenging
• Cylinder-to-cylinder exhaust pulse balance
• Engine breathing
• Throttle response
• Torque delivery
• Horsepower
• Flat-six exhaust character

Performance Benefits:

Fabspeed reports dyno-tested improvements of:

Horsepower: +15 WHP
Torque: +12 ft-lb
Weight Reduction: Approximately 2 lb

These are manufacturer-reported figures from a specific test vehicle and should not be interpreted as guaranteed output for every Porsche 996.

Actual results can vary depending on:

• Engine condition
• Vehicle specification
• Fuel quality
• Existing exhaust modifications
• Intake modifications
• ECU calibration
• Ambient temperature
• Dyno type and testing procedure

Why Upgrading Matters:
The Fabspeed Sport Headers are primarily a performance upgrade, rather than a routine replacement component.

Owners may choose them even when their original exhaust manifolds remain serviceable.

The principal reasons for upgrading include:

• Improved exhaust flow
• Equal-length primary design
• Improved scavenging
• Increased horsepower potential
• Increased torque potential
• More responsive engine character
• Smoother flat-six exhaust tone
• Reduced rear weight
• Direct bolt-on installation

They can also complement other performance modifications such as upgraded catalytic converters, performance mufflers, intake systems and suitable ECU calibration.

Fabspeed Sport Headers.
The Fabspeed Porsche 996 GT3 Sport Headers are a high-performance replacement for the factory exhaust headers, designed to improve exhaust flow, optimise exhaust-gas scavenging and enhance the power and sound of the naturally aspirated GT3 flat-six.

Fits:

• Porsche 996 GT3 MKI 1999-02
• Porsche 996 GT3 MKII 2003>>  

Hand-crafted from mandrel-bent T304L stainless steel, the headers use one-piece CNC mandrel-bent primary tubes together with F1-style merge collectors to provide a smoother, freer-flowing route for exhaust gases leaving the cylinder heads.

Fabspeed reports improvements of approximately +20 HP and +18 lb-ft of torque, together with an approximate 5 lb weight reduction. The headers also provide a mild increase in exhaust volume while smoothing and enhancing the distinctive flat-six exhaust note.

What This Product Does:
Exhaust headers collect exhaust gases leaving each cylinder and direct them into the remainder of the exhaust system.

Their design has a significant influence on how efficiently the engine can evacuate spent combustion gases.

The Fabspeed Sport Headers are designed to:

• Increase exhaust-gas flow
• Reduce unnecessary exhaust restriction
• Improve exhaust scavenging
• Improve engine breathing
• Increase horsepower and torque potential
• Support performance throughout the RPM range
• Reduce exhaust-system weight
• Produce a mild increase in exhaust volume
• Enhance and smooth the GT3 flat-six exhaust note

Performance Benefits:
Fabspeed lists manufacturer-reported figures of approximately:

Power: +20 HP
Torque: +18 lb-ft
Weight Reduction: Approx. 5 lb

The manufacturer also states that the headers improve power and torque throughout the RPM range.

These figures should not be interpreted as guaranteed results for every vehicle.

Actual performance can vary according to:

• Engine condition
• Existing exhaust configuration
• Catalytic converter configuration
• Rear exhaust system
• Intake modifications
• Engine calibration
• Fuel quality
• Ambient temperature
• Vehicle specification
• Dyno equipment and testing procedure

Why Upgrading Matters:
The original headers do not need to be worn or damaged for these Sport Headers to be installed.

They are primarily a performance upgrade for drivers looking to improve exhaust flow and enhance the GT3's naturally aspirated character.

Reasons for upgrading include:

• Increased exhaust flow
• Optimised exhaust scavenging
• One-piece CNC mandrel-bent primary tubes
• F1-style merge collectors
• T304L stainless-steel construction
• Improved power and torque potential
• Manufacturer-reported +20 HP
• Manufacturer-reported +18 lb-ft
• Approx. 5 lb weight reduction
• Improved performance throughout the RPM range
• Mild increase in exhaust volume
• Enhanced flat-six exhaust note
• Bolt-on installation
• No cutting or welding required

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FSPOR996GT3SHDR

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Fabspeed Sport Headers.

The Fabspeed Sport Headers are a high-performance direct replacement for the factory exhaust manifolds on 2000–2005 Porsche 996 Turbo models.

Fits:

• Porsche 996 TURBO 2000-05

Designed to improve exhaust gas flow from the engine to the turbochargers, these headers use equal-length, one-piece CNC mandrel-bent primary tubes and a 3-into-1 high-velocity merge collector. This layout is engineered to provide smoother, less restrictive exhaust flow compared with the original manifold arrangement.

Manufactured from high-quality 14–16 gauge T304L stainless steel, the headers offer excellent resistance to corrosion and repeated high-temperature exhaust cycles. They are designed as a direct replacement for the factory headers and can be combined with the standard exhaust or other compatible performance exhaust upgrades.

Fabspeed reports gains of approximately 12 wheel horsepower and 14 ft-lb of torque, together with a weight saving of approximately 3 lb. Actual performance gains can vary depending on vehicle condition, modifications and operating conditions.

What This Product Does:
The exhaust headers collect exhaust gases leaving each cylinder and direct them towards the turbochargers.

On a turbocharged engine, efficient exhaust flow before the turbocharger is particularly important because the energy contained in the exhaust gases is used to drive the turbine wheel and generate boost.

The Fabspeed Sport Headers are designed to improve this part of the exhaust path through equal-length primary tubes and a high-flow merge collector.

Potential benefits include:

• Improved exhaust gas flow
• Reduced restriction compared with restrictive or deteriorated factory manifolds
• More efficient delivery of exhaust gases to the turbochargers
• Improved throttle and engine response
• Support for increased horsepower and torque
• Smoother merging of exhaust pulses
• Reduced weight compared with the original headers
• Improved corrosion resistance through stainless-steel construction

Fabspeed's equal-length primary tube design is intended to maintain uninterrupted flow into the 3-into-1 collectors before the exhaust gases reach the turbochargers.

Symptoms Of Wear Or Failure:
The factory headers on a Porsche 996 Turbo are exposed to extremely high exhaust temperatures, repeated heat cycling and vibration. As vehicles age, manifolds, welds, flanges and associated hardware can deteriorate.

Common symptoms of header or exhaust manifold problems include:

• Ticking or tapping noises when the engine is cold
• Blowing or hissing noises from the exhaust manifold area
• Exhaust leaks around the cylinder-head flanges
• Black soot deposits around leaking joints
• Cracks in the manifold or around welded areas
• Warped or damaged mounting flanges
• Broken or corroded mounting hardware
• Exhaust fumes or unusual smells around the rear of the vehicle
• Increased exhaust noise from the engine area
• Reduced engine response
• Poor or inconsistent turbo response
• Loss of performance where a significant exhaust leak is present
• Increased heat around neighbouring engine components

Some of these symptoms can also result from failed gaskets, loose mounting hardware or other exhaust components, so the complete manifold assembly should be inspected before replacement.

Why Replacement Matters:

• The exhaust headers operate in one of the hottest and most demanding areas of the engine. A crack, warped flange or leaking connection can allow exhaust gases to escape before reaching the turbocharger.
• On a turbocharged engine, an exhaust leak upstream of the turbocharger can reduce the amount of exhaust energy reaching the turbine. Depending on the severity of the leak, this may contribute to reduced turbo response and poorer overall engine performance.
• Escaping exhaust gases can also expose surrounding components to excessive heat and create unwanted noise.
• Replacing damaged or restrictive factory headers restores a properly sealed exhaust path between the cylinder heads and turbochargers. Upgrading to a freer-flowing design can additionally improve exhaust flow and support other performance modifications.
• The Fabspeed Sport Headers provide a durable stainless-steel alternative to ageing factory manifolds while their equal-length layout and merge collectors are designed specifically to improve exhaust efficiency.

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FSPOR996TSHDR

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Fabspeed Sport Headers.

The Fabspeed Sport Headers are a high-performance replacement for the factory exhaust manifolds on 2001–2005 Porsche 996 Turbo and 996 GT2 models.

Fits:

• Porsche 996 GT2 2001-05

Designed to improve the flow of exhaust gases from the cylinder heads to the turbochargers, these headers use equal-length primary tubing combined with high-velocity 3-into-1 merge collectors. This arrangement is engineered to improve exhaust flow and pulse-wave scavenging while reducing unnecessary restriction before the turbochargers.

Manufactured from 14–16 gauge CNC mandrel-bent T304L stainless steel, the headers provide excellent resistance to corrosion, high exhaust temperatures and repeated thermal cycling.

Fabspeed quotes performance gains of approximately 12 wheel horsepower and 14 ft-lb of torque. Actual results can vary depending on vehicle condition, modifications and operating conditions.

What This Product Does:
The exhaust headers collect combustion gases from the engine's cylinders and direct them towards the turbochargers.

On a turbocharged engine, exhaust energy is used to drive the turbine wheels and generate boost. Maintaining efficient flow between the cylinder heads and turbochargers is therefore important for engine response and overall performance.

The Fabspeed Sport Headers are designed to:

• Improve exhaust gas flow
• Reduce restriction before the turbochargers
• Improve exhaust pulse scavenging
• Provide more efficient delivery of exhaust gases to the turbochargers
• Support improved throttle and engine response
• Support increased horsepower and torque
• Replace ageing factory manifolds
• Provide durable stainless-steel construction
• Maintain consistent pipe diameter through mandrel-bent sections

The equal-length design helps coordinate exhaust pulses from each cylinder, while the 3-into-1 collectors smoothly combine the gases before they enter the turbochargers.

Symptoms Of Wear Or Failure:
Exhaust headers operate under extremely demanding conditions and are continually exposed to high temperatures, vibration and repeated heating and cooling cycles.

Common signs of worn, cracked or leaking headers include:

• Ticking or tapping noises, particularly when the engine is cold
• Blowing or hissing noises from the manifold area
• Black soot deposits around header joints
• Visible cracks in the manifold or welds
• Exhaust leaks around the cylinder-head flanges
• Warped mounting flanges
• Broken or corroded mounting studs and nuts
• Increased exhaust noise
• Exhaust fumes around the engine area
• Reduced throttle response
• Slower or inconsistent turbo response
• Loss of engine performance
• Increased heat around neighbouring engine components

Similar symptoms can also be caused by failed exhaust gaskets or loose mounting hardware, so the complete manifold assembly should be inspected before replacement.

Why Replacement Matters:
A properly sealed exhaust path between the cylinder heads and turbochargers is particularly important on a turbocharged engine.

If a header cracks or develops a leaking flange, some exhaust gas can escape before reaching the turbocharger. This reduces the exhaust energy available to drive the turbine and can contribute to slower turbo response and reduced engine performance.

Escaping exhaust gases can also expose surrounding components to excessive heat and create unwanted noise.

Replacing damaged or deteriorated headers helps restore:

• A secure and leak-free exhaust path
• Efficient exhaust delivery to the turbochargers
• Consistent turbocharger response
• Correct exhaust flow
• Reduced exhaust leakage
• Reliable long-term operation

For vehicles with healthy factory headers, upgrading to the Fabspeed system provides a freer-flowing equal-length design intended to improve scavenging and support increased performance.

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FSPOR996GT2SHDR

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High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Inconel 718 and aerospace technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (non Turbo)
Porsche 993 All
Porsche 996 (non Turbo)
Porsche 997 (non Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

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SL-In-12

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Screw plug for lambda hole, M18x1.5 mm.



Fits:
Porsche 924S 2.5L 1987-88 (Engine M44.09/M44.10)
Porsche 944 2.5L 1987-90 (Engine M44.09/M44.10)
Porsche 944 Turbo 2.5L 1985-91
Porsche 944S 2.5L 1986-88 (Engine M44.40)
Porsche 944 2.7L 1988-89
Porsche 944 3.0L 1988-91
Porsche 996 GT3 3.6L 1999-05
Porsche 968 3.0L 1991-95
Porsche 986 Boxster 2.5L 1996-99 (Engine M96.20)
Porsche 986 Boxster S 2.7L-3.2L 1999-04
Porsche 993 3.6L-3.8L 1993-97
Porsche 997 3.6L 2004-08 (Engine M95.05)
Porsche 997 3.8L 2004-08 (Engine M97.01)

Click 'Zoom in' for large parts diagram.
Diagram ref no 20

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90021901500

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High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Titanium Ti6Al4V technology
• Extreme perceived quality

Contains 12 x Studs, Nuts & Washers

Fits:
Porsche 911 1965-77
Porsche 964 (none Turbo)
Porsche 993 All
Porsche 996 (none Turbo)
Porsche 997 (none Turbo)
Porsche 986 All
Porsche 987 All
Porsche 718 4 Cyl Turbo

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SL-Ti-121

The product you are viewing cross references to these numbers

High performance stud + nut kits for the exhaust manifold to cylinder head for Porsche. Using titanium and Inconel alloy studs, aerospace lock nuts, and a well-thought and balanced combination of metals and plating/coatings, our fasteners will perform better than the traditional fastener. They will never oxidize, and hence will unscrew easily when required.



Novel ultra-high-performance product
• Use of Titanium Ti6Al4V technology
• Extreme perceived quality

Contains 18 x Studs, Nuts & Washers

Fits:
Porsche 996 Turbo / GT3 / GT2
Porsche 997 Turbo / GT3 / GT2
Porsche 997.2 ALL
Porsche 991 ALL
Porsche 992 ALL
Porsche 987 2009-12
Porsche 981
Porsche 718 GT4

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SL-TI-18

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