Fabspeed Porsche 981 Boxster / Cayman RENNKRAFT™ Modular Headers with HJS Catalytic Converters (2013-2016)

These CAD designed and USA Patented modular headers are the perfect solution for any Cayman or Boxster owner looking for maximum increased power and sports car sound. Our patented RENNKRAFT® modular design features a quick release V-band connector that allows the owner to easily swap between our  HJS German Imported European Certified European Homologated 200 cell cats and a cat bypass “straight pipes” for  Race Track real Competition ONLY.  RENNKRAFT®, translated from German is “race power”. The Patented Fabspeed Rennkraft® headers offer true street legal EPA compliant high performance catalytic converters  and racetrack functionality in an innovative precision engineered package.

SOUND:

Equipped with Fabspeed imported HJS HD 200 cell cats, you will get a much more aggressive note with a much more raw high pitched Flat-6 sound. Higher frequency tones are more defined, and off throttle burbles are more robust and transparent. With the cat bypass pipes installed, you are ready for all out Race Competition and the ability to Spare and Save your catalytic converters from all out sustained abuse competition.  The volume isn't overbearing, but the sound is very aggressive and race bred. It totally changes the character of the car. 100% illegal to be sold and installed on Street driven cars. 

FEATURES:

Fits all Porsche 981 Boxster / Cayman Base, S, and GTS vehicles  from 2013-2016 and 2016 GT4 3.8 liter cars worldwide. 
Constructed from CNC mandrel-bent T304L stainless steel
HJS German catalytic converters are US EPA compliant and European certified and homologated. 
Fabspeed Worlds Very 1st Company to design, engineer, 3D scan aftermarket headers for water-cooled Porsche cars. Therefore we have the most experience and Best Quality. 
Significant power and performance gains +25 HP and +20FTlb torque.
Save 2 lbs / 0.9 KGs with Sport Cats and 7 lbs / 3.2 KGs with Cat Bypass compared to the factory headers
USA Patented awarded for a Modular design that uses a  quick release V-band clamp so one can quickly swap between cats and cat bypass
With the RENNKRAFT® system, you can quickly install our QUICKTRACK™ cat bypass pipes for Racing and all out Race track-only competition events
The RENNKRAFT® system has been awarded a US Patent and is the only system of its kind in the world
Switching to cat-bypass for track events prevents catalytic converter degradation during all out competition racing abuse. IN addition, If and When your catalytic converter fails and or degrades due to high mileage YOU can buy a new HJS catalytic converters and quickly install and have USA EPA emissions compliance again and be street legal.
F1 style high velocity merge collectors for maximum scavenging and power. 
Designed from 3D scans of the OEM headers so we can achieve perfect bolt-on fitment
We use German-made and imported HJS HD tri-metallic 200-cell EUROPEAN EUROPEAN Certified 6 homologated catalytic converters for the best performance and reliability
We use the largest catalytic converters that will fit in the factory location for maximum flow
Flows 93% of a  straight pipe- THEREFORE ABSOLUTELY NO POWER GAINED by running illegal catbypass pipes as DYNO verified. 
Optimized for maximum performance with NO catalyst generated check engine light, guaranteed, when HJS Sport Cats are installed
No ECU tune required - just Bolt-ON and GO. 
ONLY FABSPEED USA- is Authorized Exclusively by HJS Emissions Germany to import and distribute the worlds finest catalytic converters. 
Will fit with any brand of aftermarket exhaust system designed to work with the factory headers
25+ years of air-cooled and water-cooled Porsche experience went into our design for these hand-crafted headers
Simple DIY (Do-It-Yourself) bolt-on installation- simply unbolt the old headers and replace with brand new Fabspeed headers and go!
All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty