The Fabspeed Motorsport Valvetronic Nordschleife Cat-Back Exhaust System gives the 992 GT3/ GT3RS a truly exotic sports car sound, all while retaining the functionality of PSE, Porsche Sport Exhaust valvetronic push button system. Our design process started with 3D laser scanning the entire OEM exhaust system and underside of the GT3 flat 6 engine using our CREAFORM 700 Handscan so that we could make a complete Solidworks 3D model of the exhaust. We then CAD designed the exhaust and fixtures using that model so that the exhaust fit perfectly to OEM Porsche Motorsport standards. After multiple revisions for Sound Quality and ACTUAL incremental dyno testing we decided to use our signature cast 70mm 2.75" X-Pipe to tie the two Flat-Six cylinder banks together for exhaust scavenging and to defeat resonance. The exhaust valves are made by Helical Limited in the United Kingdom. These are the WORLD's finest Aerospace quality exhaust valves.   Helical ISO 9001 certified valves are the same ones Ferrari, McLaren, Pagani, Aston Martin, Koeniggseeg,  and Porsche use on their GT cars. Fabspeed's exhaust systems are mandrel bent in-house from T304 Stainless steel, and you have five different tip options to choose from. This 992 GT3 systems is 100% GUARANTEED to make the Worlds Very best sports car sound and MORE power than any other system in the WORLD! Ultimate quality bullet-proof exhaust valves and an X pipe linking both exhaust banks of the FLAT 6 required real true engineering versus simply slapping together two 90 degree straight pipes like many other companies or utilizing 3" tubing 100% guaranteed to make less horsepower and torque versus Fabspeed.  

SOUND:

With PSE off our Valvetronic exhaust gives a nice subtle increase in volume. With PSE on it turns the 4.0L's exhaust note into a truly exotic sound with a significant increase in volume. The exhaust note changes from the smooth purr of the OEM exhaust to the aggressive race-bred snarl of a SUPERCUP car. The investment cast X pipe is proprietary CAD designed is crucial to deliver high pitched GT3 sports car sound. Seriously, after we designed and BUILT 4 different exhaust systems we ONLY delivered the very best system in terms of sports car sound and maximum power. Typically in this industry competitors "WACK something together and never ever test it, use CHEAP as Dirt LOUSY Chinese exhaust valves 100% guaranteed to fail" and go to market with Maximum hype. Fabspeed with over 25+ years of air-cooled and water-cooled experience never ever takes short cuts. ASK questions , DO NOT be a SUCKER BUYING a YouTube VIDEO sensational NO CATTED Straight pipe system that LOSES POWER and is 10% illegal BUT sounded good in an enhanced Social Media Video and it was made in CHINA or of Chinese Taiwnaese cheap parts and re-sold with no hype and no dyno results. 

POWER:

This Maxflo valvetronic designed Nordschlefe system valves improves on Porsche’s design by increasing pipe diameter from 2.5 in to 2.75in 70mm  and using our signature investment cast X-pipe instead of the factory H-Pipe. On our DynoJet we saw +17.5 crank  HP or +14 whp (whp= horsepower at the wheels) at 4200 RPM and a healthy dose of torque down low at 4200 RPM gaining 17 ft/lbs of tq. Significant power gains that you can feel by the seat of your pants and also major rear weight savings. FYI, for your information a 3" X pipe LOST 15FTLB torque and -10HP versus 70mm. Larger is 100% the wrong way to go. Caveat Emptor- buyer beware.

FEATURES:

• Fits all Porsche 992 GT3, GT3 RS, and Speedster Models Worldwide
• Significant Dyno gains across the RPM band. +17 ft/lbs tq @ 4200RPM  and 17.5HP crank  +14 whp @ 4200RPM
• Dyno developed incrementally to give you the MAXIMUM Horsepower and superlative GT3 Cup style sports car sound. 
• Weight savings of 5lbs / 2.3KGs vs the factory exhaust
• Completely retains PSE valved exhaust functionality- so you can mild and aggressive at the push of a button!
• TITANIUM investment cast precision CNC machined lightweight inlet funnels- to T304 valvetronically designed system. 
• Uses aerospace quality Helical Limited exhaust valves imported from the U.K. NO cheap guaranteed to fail valves from Asia!
• Helical exhaust valves MUST be mandatory on any and all Porsche exhaust systems. If you are BUYING ask the other GUYS if these use Helical limited U.K. exhaust valves? If they dont or start saying their valves are JUST as GOOD RUN FAST!
• Helical exhaust valves are aerospace grade valves that Porsche , Ferrari, McLaren , Aston Martin, Pagani, Koeniggseeg , Gordon Murray use exclusively- no cheap as dirt 100% guaranteed to fail $50 Chinese valves. 
• Incorporates our signature cast X-pipe for superior flow and maximum power through exhaust scavenging
• IGNORE and DO NOT buy any systems with 3" pipes and especially 3" H pipe GT3 systems . WHY- you will drop 15+ horsepower and suffer drone. 
• This cat-back system is emissions legal in all 50 states and rest of the world
• Constructed from high-quality TITANIUM along 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
• 3D Laser scanned and CAD designed for perfect OEM fitment using an Ametek Handyscan 700
• No Check Engine Light guaranteed- as its Cat-Back emissions complaint. 
• The worlds very best systems 100% dyno proven and guaranteed versus others systems. 
• CAVEAT EMPTOR- virtually all other brands of exhaust will simply be LOUD and YOU typically loose power and reliability. 
• Simple DIY bolt-on installation- comes with everything you need for a simple installation. Buy once and right versus others. 
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty