Transform your GT4 RS’s exhaust note and ADD significant power versus the stock GT4 RS rear exhaust. FABSPEED's proprietary X-pipe design gives the GT4 RS the same high pitched wail as the GT3 and it’s totally plug-and-play with the factory exhaust valve system so you can quiet down the exhaust using the factory PSE button.
Our design process started with 3D scanning the entire OEM exhaust system using our CREAFORM 700 Handscan so that we could make a complete Solidworks 3D model of the exhaust. We then designed the exhaust and fixtures using that model so that the exhaust fit perfectly to OEM standards. After multiple revisions for sound and dyno testing we decided to use our signature investment cast X-Pipe to tie the FLAT 6 engine's two separate Right & Left cylinder banks together for exhaust scavenging and to defeat resonance. We also went to great lengths to eliminate drone on this exhaust, utilizing helmholtz resonator technology to cancel out unwanted frequencies that “drone.” Porsche GT4RS and SPYDER RS owners and shops- the FABSPEED GT4RS rear valvetronic is 100% guaranteed to be the best sounding, most reliable and most powerful system available.
SOUND:
Wondering why your GT4 RS doesn’t have the same high pitched scream of the GT3? Our Valvetronic X-Pipe is the solution! Our X-pipe design merges the two exhaust banks for an intoxicating 9000 RPM symphony. Even though this system will net you a significant increase in volume over stock, the valved design allows you to control the volume with the factory PSE (Porsche Sport Exhaust) button, quieting the exhaust note for a drone free driving experience.
POWER:
Comparing our development car equipped with our Over Axle Link Pipes, our Vavled X-Pipe added +7.5HP (+6.2 HP at the rear wheels) at 8100 RPM and +11 ft/lbs of TQ at 3500 RPM. WE designed and DYNO developed multiple systems BEFORE we settled on the very best system in terms of sound and horsepower. Trust Fabspeed with over 30 years or experience!
FEATURES:
- Fits all Porsche 718 GT4 RS 2022+ Models worldwide and RS Spyder too- incase you trade in the Cayman GT4RS.
- Dyno proven power gains that are significant and maximized.
- Saves -3 lbs / 1.4KGs compared to the factory system
- Completely retains PSE valved exhaust functionality
- Uses aerospace quality Helical Limited exhaust valves imported from the the United Kingdom.
- Helical ISSO certified exhaust valves are the WRLDs VERY FINEST exhaust valves and are used by Ferrari, McLaren, Pagani, KOennigeegs and Porsche GT3 cars.
- HELICAL exhaust valves are the 1 and ONLY exhaust valve that any GT4RS or BUYER should allow to be used on their exhaust.
- ASK any other brand what exhaust valve they use? If they balk and its NOT Helical imported from Great Britain 0 RUN and run fast as they are pushing cheap Chinese 100% guaranteed to fail exhaust valves. Often sandblasted trash to obscure original. It matters!
- Helmholtz resonator technology eliminates drone
- Incorporates our signature cast X-pipe for superior flow and exhaust scavenging
- This cat-back system is emissions legal in all 50 states and the rest of the world (ROW)
- Constructed from high-quality 14-16ga CNC mandrel-bent T304L stainless steel for optimum flow and maximum durability
- Laser scanned and CAD designed for perfect OEM fitment using an Ametek Handyscan 700
- No Check Engine Light guaranteed
- Simple DIY bolt-on installation- VIDEO installtion online and comes with all hardware.
- All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Performance Enhancements
Unrivaled exhaust efficiency becomes the new reality with our ultra-optimized Porsche GT4 RS exhaust installed! Say goodbye to muted tones and lackluster acceleration; this is the Porsche GT4 RS exhaust system you need to cut weight, overcome exhaust limitations, and stand out with an iconic roar that properly represents the raw power at your disposal.
How does our innovative valved X-pipe unveil your Porsche GT4 RS’s hidden potential? Our precision-tuned Porsche GT4 RS and 991 GT3 exhaust systems provide:
- Maximum flow potential with our revolutionary X-pipe design and smoother exhaust characteristics allow your engine to breathe more freely. Reduced backpressure and exhaust turbulence directly improve power output.
- Superior base materials enhance exhaust and engine component longevity. Lighter and more resistant to intense racing and road conditions, our exhaust clients can look forward to unrivaled material longevity and dependability.
- Streamlined catalytic designs improve exhaust scavenging and maintain 100% street-legal emissions worldwide. With our premier HJS catalytic upgrades, you no longer have to choose between optimal exhaust performance and legality.
Forged to last a lifetime, this must-have exhaust upgrade establishes a capable street and racing foundation that performs as great it sounds. To accentuate the profound horsepower and torque gains, explore other custom Fabspeed Motorsport upgrades like our top-tier tuning software and intake systems and prepare to set a new track record.
Components of the Exhaust System
To complete this exhaust masterpiece, each and every component has been meticulously optimized for seamless fitment and high-performance potential. Here’s a breakdown of our top-rated Porsche 718 GT4 RS Valved X-Pipe Cat-Back Exhaust System:
- High-Quality Construction: The entire exhaust system is made from 14-16ga CNC mandrel-bent T304L stainless steel. This superior alloy ensures longevity, higher resistance to heat/corrosion, and fewer maintenance and repair expenses.
- Helical Exhaust Valves: Our aerospace-grade Helical ISSO-certified valves are the only valves you want to support your exhaust functionality. Effortlessly open and close the valves with the factory controls, unleashing your pure Porsche power at a whim.
- Superior Catalytic Conversion: Access all of the extra performance power without compromise with this premier cat-back system. Our systems are legal everywhere and will not trigger a check engine light. Trusted for the track and the street, this system is a complete replacement for your factory system.
- Advanced resonator technology: Ample sound is achieved without the unwanted drone and rattle. Enjoy a smoother ride and feel the newfound power the way it was meant to be experienced.
- Stunning and customizable exhaust tips: Complete your pristine and high-performance exhaust upgrade with your choice of 5 luxurious tip types. Go with satin black, polished steel, or carbon fiber for a modern finish, or tame the tune with a stylish set of turn-down tips to maintain a powerful yet refined sound profile.
