

For all 992 GT3 and 992 GT3 owners drivers worldwide this is a complete 992 GT3 long tube headers to tips exhaust solution for ultimate weight savings and performance. The Fabspeed RennKraft® system features our U.S. patented RENNKRAFT® system- this allows Catted and NO cat systems in a modular PATENTED design. Designed and guaranteed to be the most powerful emissions compliant exhaust system possible. We used all 25+ years of Porsche exhaust design experience and our finest manufacturing techniques to engineer this incredible modular system. Fabspeed Motorsport engineering started with the headers. From our experience designing our 991/991.2 GT3 Long Tube Headers, We knew that “long tube” headers were essential for making BIG power on the GT3 platform. After dozens of dyno runs and many revisions to runner length, diameter, and pyramidal F1 Indycar merge collector design we moved on to CAD designing the catalytic converters and rear section. With perfectly optimized headers and EMITEC HJS German imported high-flow racing catalytic converters, there was no room to fit the factory muffler section, so that went out the window. In its place we implemented extra large 200 cell HJS cats and our signature investment cast CAD designed 70mm 2.75" X-pipe. These cats flow so much better than stock, that we only gained 1-2 peak WHP when we tested the system with no cats. You can see the dyno graph for yourself above. Finally, after much testing we found that our cast X-pipe provided some significant gains from 3-6K RPM when compared to a simple crossover tube or 2 separate "easy lazy to make" 90 degree pipes. With the patented RENNKRAFT® system, you can easily swap between catted and cat bypass using the quick release v-band clamps (patent pending). So if you’re going to the track for Endurance Racing you can swap in cat-bypass pipes for endurance Racing Competition events. BUT you can rest assured with Emitec HJS German European certified Homolgated racing catalytic converters you are leaving no extra power on the table while making maximum Clean and Green Performance. tm.
SOUND:
This system is awesome as its the lightest weight emissions complaint systems that could be factory installed on any Porsche RSR GTLM GT3R factory race car. it’ll turn your GT3 into a snarling aggressive race-bred machine. This system is LOUD, it pops and gurgles, and it will absolutely scream to redline. This is at the cost of some interior drone and day-to-day livability. We have many people Wolrdwide that love this system and like the massive weight savings versus stock and OFF the rear end for better handling. This systems is 100% manufactured at Fabspeed Motorsport USA.
POWER:
This is the way; the most powerful emissions compliant 992 GT3 exhaust system on the market. Max gains of +37 HP/ 31 WHP (whp= horsepower at the wheels) and 39 ft/lbs of TQ are seen at 4250 RPM. That’s 357HP at the crank! Gains of over 20 WHP are carried all the way from 6000 RPM up to redline. Usuable power ALL across the RPM band from Fabspeed Motorsport applying over 30 years of Air-cooled and water-cooled experience. You’re going to feel the power that this system adds to your GT3!
FEATURES:
NOTE:
Why We Choose HJS Catalytic Converters:
HJS German catalytic converters are the best high-performance catalytic converters in the world. Made from the highest grade materials, they offer increased power, enhanced sports car sound, and long-term durability. In most applications, HJS German EMITEC 200CPSI catalytic converters can flow up to 90-93% of a straight pipe. While other brands of catalytic converters quickly degrade, lose power, and give the car a Check Engine Light, HJS German catalytic converters offer a guarantee of NO CEL - (NO Check Engine Lights)
Fabspeed Motorsport USA is the exclusive importer and distributor of HJS catalytic converters in North and South America. If you want to upgrade your sports car, SUV, or truck with high-flow trimetallic OBD2 European-certified homologated catalytic converters, Fabspeed is the only place to obtain 100% genuine HJS Emitec certified components. Please be aware that any other company offering HJS-equipped products should be questioned before purchase as to where they obtained HJS catalytic converters. All installation and use risks lie with the end-user and installer of these parts.
If you'd like to learn more, click here to watch our video about HJS catalytic converters.
We're currently working to get more reviews for this product. In the meantime, please take a look at our reviews from other platforms.
Scott K was my sales person. He responded immediately on the web and continued to deal with me on the phone. I purchased a valvetronic system for my R8 and it came out beautifully. We had a hiccup during the process where the system failed their QC process. It took an additional 3 days to get the exhaust, but the expedited it and threw in some swag for the trouble. All-in-all, these guys know how to deal with supercar customers and want to make sure that the VERY small community is well cared for. I'm incredibly happy so far and would highly recommend them.
Firstly, I want to start off by complimenting the customer service I received from Fabspeed. I worked with Gary from the beginning and he was nothing but helpful, answering all of my questions and helping me understand exactly what I wanted for my car. Once I picked out what I wanted, the ordering process was easy and the package came FAST! Install was easy and the end results were AMAZING. Simply installing their headers took my car from sounding cool to COOL!! I get so many compliments on how the car sounds and everyone is blown away to learn that I only installed headers with no tune. I could not be happier with the result, especially at a relatively low cost. THANK YOU FABSPEED!! Can't wait to work with this company again in the future.
i have their secondary cat by pass pipes and maxflow mufflers on my 958s. i also have their supersport exhaust on my 991. both sound amazing. i recently had a minor concern/problem and contacted them. john palo reached out to me the next day and sorted everything out. its been well over a year since i purchased and he took care of me no questions asked. johns customer service is top notch and i just wanted to write this review to thank him. great products and even better customer service, thanks fabspeed and john!
Great team and outstanding products. Thank you DJ for all your help getting my Porsche 991.1 all setup and sounding amazing.
i have made the installation of the FABSPEED Sport cats and Sport headers on my 2017 Porsche 991.2 Carrera 4 cab at my Porsche Center yesterday and iam very satisfied. Still quiet when the PSE is off and very loud in sport and sport+ mode, i like so much the backfire who are this time stronger and the turbo noise who is more noticeable. Iam very happy of the sound a lot better of the original one, thanks you FABSPEED