Manifold / Headers

Headers sports Stainless Steel (Titanium Alloy) (PAIR)



Fits:
Porsche Boxster 986 2.5L / 2.7L / 3.2L Manual gearbox only

DesignTek sports headers for throaty sports car sound, but not too loud for every day driving, manufactured from extra heavy duty stainless steel, which eliminates the splitting, cracking and annoying resonance.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3606308601

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 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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-In-12

The product you are viewing cross references to these numbers

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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90021901500

The product you are viewing cross references to these numbers

Porsche 981 Boxster / Cayman SOUL Competition Headers

Offering the greatest gains in power and sound, SOUL Competition Headers for the Porsche 981 are an excellent performance upgrade from the heavy and restrictive stock manifolds. You’ll notice the 11 lb weight savings, decreased operating temperatures, and improved engine response all while separating your car from the crowd with the increase in tone.

• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
•  Direct bolt on installation – instructions included
•  Constructed from 14-16ga T304L stainless steel tubing
•  All SOUL Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

DEVELOPMENT AND TESTING:
By creating a unique application for the 981 platform, we’ve focused on sizing the runners (2”) and collectors correctly to extract maximum power from the 3.4L engine while producing great gains from the 2.7L as well.

DYNO RESULTS:
A 981 Cayman S with SOUL Valved Exhaust, intake, and ECU tune added Competition Headers and IPD plenum and GT3 throttle body for comparison. Comparing the average performing run of both sessions shows gains of 26 whp (303->329) and 24 ft-lbs of torque (276->300).

CONSTRUCTION: 

Our precision engineered headers are meticulously fabricated from T304L stainless steel. Proven design elements including port matched flanges, smooth radius primary tubing, and collectors that optimize the exhaust flow all work in conjunction to maximize power gains. Every set is rigorously quality-checked prior to shipping.

BOLT ON AND GO:
Each exhaust is tested in a fixture to ensure perfect fitment and then foam packed to arrive in perfect condition. Thorough installation instructions are included in the box for a straightforward install that can be performed by most DIY enthusiasts. New high grade hardware is included.

CHECK ENGINE LIGHT?: This product may trigger a check engine light due to removal of factory catalytic converters. O2 Spacers are available to reduce any chances of triggering a CEL. We suggest a custom ECU tune to disable any check engine lights (for track use only).

LIFETIME WARRANTY: 
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.

NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only due to removal of factory catalytic converters

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.981.COH

The product you are viewing cross references to these numbers

Porsche 981 Boxster / Cayman SOUL Long Tube Street Headers, (w/ HJS 200 cell catalytic converters).

The SOUL Performance Products Long Tube Street Headers are engineered with large-diameter, free-flowing catalytic converters and extended tube runners to deliver maximum gains in horsepower, throttle response, and the signature flat-six soundtrack. Enjoy noticeable performance improvements—without triggering a check engine light!

• Fits all Porsche 981 Cayman / Boxster vehicles (2013-2016)
•  Added performance without a check engine light
•  Direct bolt on installation – instructions included
•  All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

DEVELOPMENT & TESTING:
Designed specifically for the Porsche 981 platform, these headers feature carefully sized 2” runners and optimized collectors to unlock maximum power from the 3.4L engine, while still delivering impressive gains for the 2.7L.

CONSTRUCTION:
Each header is handcrafted from T304L stainless steel and undergoes rigorous in-house quality checks. Key design elements—such as port-matched flanges, smooth-radius primary tubing, and precision collectors—work together to enhance exhaust flow and maximize performance.

BOLT-ON INSTALLATION:
Every set is fixture-tested for perfect fitment and securely foam-packed for safe delivery. Detailed instructions are included, making installation straightforward for most DIY enthusiasts. 

LIFETIME WARRANTY: 
Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.

NOTE:
+ This product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for off road use only

NOTE:  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 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.981.STH

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 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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-TI-18

The product you are viewing cross references to these numbers