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 NOTE: For licensing of the RENNKRAFT® system, please inquire (215-646-4945)   WHY YOUR SPORTSCAR MUST  ONLY HAVE  HJS GERMAN AUTOBAHN PROVEN Racing High Flow Catalytic Converters:  HJS Emission technology German imported EMITEC  catalytic converters are made from the highest grade materials in the WORLD. There is simply no alternative Street, Autobahn and Race Proven catalytic converter that compares in the World.  HJS German proven catalytic converters offer the Worlds very best high performance power increases along with enhanced Sportscar sound and long term proven durability.  Any and all other brands of catalytic converters simply and quickly degrade , lose power and give the car a Check Engine Light and or do not scrub the exhaust systems as well as the OEM catalytic converters.  HJS German EMITEC  200CPSI  catalytic converters can flow up to 90-93% of a straight pipe in most applications. The benefit is that you get the "straight pipe exotic sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.   DO NOT ASSUME ALL CATALYTIC CONVERTERS ARE THE SAME or EVIL Performance killers. HJS EMITEC catalytic converters are 100% Guaranteed to make more power than any Illegal cat-bypass pipes even on Turbocharged engines with aftermarket high performance turbos.  If you'd like to learn more, watch our video about HJS German  catalytic converters. FABSPEED MOTORSPORT USA was appointed 20 years ago as HJS Emissions Technology Menden Germany as HJS Exclusive importer and distributor for all of North and South America. Therefore when you purchase HJS catalytic converters and or Fabspeed systems equipped with HJS catalytic converters the PURCHASER is 100% ASSURED that they have received Genuine certified high-performance HJS components imported directly from HJS Emitec Germany. ONLY Fabspeed Motorsport can offer HJS German direct imported catalytic converters in the USA. Any other company offering HJS Equipped products SHOULD be QUESTIONED before purchase as to where they obtained HJS Catalytic converters. If they reply they did NOT buy HJS catalytic converters from Fabspeed Motorsports USA, HJS Exclusive importer , you can be assured that the HJS cats are either certainly counterfeit, Grey Market and or falsified and engraved HJS just like a fake ROLEX watch. Never Ever assume when you can go direct to Fabspeed or one of our buyers to obtain 100% Genuine HJS Emitec Certified Homologated high performance racing catalytic converters.  Fabspeed HJS German tri-metallic catalytic converters are State of the Art ultimate emission legal performance enhancing components. Your sports car , SUV and Truck equipped with HJS German catalytic converters is 100% Guaranteed to make more Horsepower, Torque, enhanced sports car, better fuel economy than any OEM stock catalytic converter and or ANY Illegal Cat Bypass pipe downtube. In fact, if you have any older cars, used cars and or cars with FAILING, DELETED or Butchered catalytic converters then do yourself a favor and UPGRADE your car with a set of Fabspeed HJS German high-flow trimetallic OBD2 European Certified Homologated catalytic converters. Its the Right thing to do to achieve CLEAN and GREEN Performance and leave absolutely nothing on the table for performance and sports car sound. Furthermore all the Air we breathe globally is not affected by using cat-bypass pipes or stupid solutions like NON Catted downtubes.  HJS German catalytic converters aka catalysts on a properly tuned and functioning engine and engine management systems offer  guarantee NO CEL -  NO Check Engine Lights.This is in direct comparison to NO NAME Cheap as dirt ASIAN Pacific Rim 100% guarantee to Fail catalytic converters and Cheap European and USA aftermarket catalytic converters . Do NOT even waste your time , money and energy evaluating any other brand of catalytic converters for your high-performance car.