Headers & Manifolds

FEATURES:  Fits all 911 Turbo 930 vehicles (1976-1989) Including the factory 930 Slantnose "Flachbau" - Requires Slantnose Oil Line Kit above. Improves power delivery much sooner in the RPM range compared to the restrictive OEM heat...

These modular RENNKRAFT® headers are the perfect solution for any street driven 4.0 liter Cayman or Boxster. Our patented modular design features a quick release V-band connector that allows the owner to easily swap between our German made HJS 200...

These modular headers are the perfect solution for any Cayman or Boxster. Our patented RENNKRAFT® modular design features a quick release V-band connector that allows the owner to easily swap between our German made HJS 200 cell cats and a cat bypass...

FEATURES: Fits all Porsche 997 GT3 / 997.2 GT3 / GT3 RS vehicles world wide and certain GT3 CUP race cars.  (2007- 2011) Increases throttle response and dramatically improves sports car sound CAD designed and incrementally Dynojet developed and...

FEATURES: Fits all Porsche 991 GT3 / 911R / 991.2 GT3 / GT3 RS vehicles world wide (2014- 2019+) Increases throttle response and dramatically improves sports car sound CAD designed and incrementally Dynojet developed and tested for maximum...

Improve both the sound and the power from your 981 Boxster/Cayman with these sport headers. Our Sport Headers use 200 cell HJS catalytic converters which improve exhaust flow while still cleaning your exhaust gases. SOUND: These headers will give you a...

These 991 Performance Sport Headers improve exhaust flow and sports car sound; Sport Headers include 200-cell HJS high flow catalytic converters. SOUND:  These headers will give you a significant increase in volume, and a smooth sports car sound...

Performance headers improve exhaust flow and sports car sound; Sport Headers include 200-cell HJS Sport Catalytic Converters. SOUND:  These headers will give you a significant volume increase and give your 997.2 the classic flat-6.   ...

Equal-length ULTRA high performance headers with HJS German Imported catalytic converters. Sport headers improve exhaust flow and sports car sound and feature incredible 200-cell HJS German Catalytic Converters           ...

Equal-length performance headers improve exhaust flow and sports car sound; Sport Headers include 200-cell HJS Sport Catalytic Converters.                               ...

Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range FEATURES: Fits all Porsche 997.2 GT3 / GT3 RS (2010-2012) Includes German-imported HJS 200-Cell Tri-Metallic Sportcats Adds 21 whp...

FEATURES: Fits all Porsche 997 GT3 / GT3 RS vehicles 2006-2009 Includes German-made 200 cell high performance HJS Tri-Metallic Sport Catalytic Converters Constructed from high-quality 14-16 gauge, C.N.C. mandrel-bent stainless steel Optimized for...

Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range.                                   ...

FEATURES: Fits all Porsche 981 Cayman GT4 / Boxster Spyder vehicles (2015-2016) Includes German-imported 200-cell HJS Sport Catalytic Converters for maximum performance and reliability Adds +28HP and +41 ft-lbs of torque at 3600RPM, providing...