SKU: 1128094871

Fabspeed Porsche 718 GT4 RS Titanium Valvetronic X-Pipe Cat-Back Exhaust System (2022+)

Sale price$3418.17 Regular price$3797.97
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

Fabspeed Porsche 718 GT4 RS Titanium Valvetronic X-Pipe Cat-Back Exhaust System (2022+)Upgrade your Porsche 718 GT4 RS with the Fabspeed Titanium Valvetronic X Pipe Cat Back Exhaust System. Experience a 15% increase in power and a deeper, more aggressive exhaust note. Made from lightweight titanium, this system offers improved performance and weight reduction. Enjoy full control over your exhaust sound with the valvetronic system. Our design process started with 3D scanning the entire OEM exhaust system using our CREAFORM 700 Handscan

Upgrade your Porsche 718 GT4 RS with the Fabspeed Titanium Valvetronic X-Pipe Cat-Back Exhaust System. Experience a 15% increase in power and a deeper, more aggressive exhaust note. Made from lightweight titanium, this system offers improved performance and weight reduction. Enjoy full control over your exhaust sound with the valvetronic system.

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 Vavletronic 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+ and Spyder RS Models worldwide
  • Dyno proven power gains that are significant and maximized. 
  • Saves -10 lbs compared to the factory system
  • Completely retains PSE valved exhaust functionality- BUT using the WORLDS 100% FINEST exhaust valves too!
  • Uses aerospace quality Helical Limited exhaust valves imported from the the United Kingdom. 
  • Helical ISO certified exhaust valves are the WRLDs VERY FINEST exhaust valves and are used by Ferrari, McLaren, Pagani, Aston Martin, Pagani, Koenigseggs and Porsche GT3 cars. 
  • HELICAL exhaust valves are the 1 and ONLY exhaust valve that any GT4RS, RS Spyder, 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
  • 100% Guarnatee to make more power and better high pitched sportscar sound and use the worlds very best components versus any other brand!
  • Incorporates our signature titanium 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 CNC mandrel-bent Titanium 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

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1128094871

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4.7 ★★★★★
Based on 18 reviews
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J
Verified Purchase
Jana
Bozeman, US
★★★★★ 4
Awesome
Size: 32 oz
Works as advertised. Just don't scrimp... give it the full recommended amount in each tire
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
kevin weir
Grantham, US
★★★★★ 5
This tire sealant works very well
Size: 16 oz
So far so good. Cheaper and easier that tubing a leaking tire
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Reviewed in the United States on May 24, 2026
J
Verified Purchase
Jerry D
Massapequa, US
★★★★★ 3
Hard to install as instructed.
Size: 32 oz
Nearly impossible to get it in the tire through the valve. Yes I removed the valve core. Broke the bead on the tire and dumped it in. That worked great! So far no leaks. They should definitely redesign the installation method.
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Reviewed in the United States on April 28, 2026
B
Verified Purchase
bsync
Dallas, US
★★★★★ 5
Been using it for 15 years! Not sure where the Neg reviews come from?
Size: 16 oz
I've been using Liquitube since around 2010. I use it religiously in my ATVs and lawn tractor tires. Since I've been using this stuff, I've never had a flat before. I've pulled out nails and slivers of steel out of my ATV tires but yet none of them lose air or go flat. I think some of the negative reviews come from improper use of the product or not enough of the product is being used in the tires. I think this come from variance in formula charts that Liquitube has had in the past on their bottles and on their website. The chart on their website wouldn't match the formula that was provided on the bottle. So I think alot of people get mixed up and not knowing the correct amount to add to each tire. Now Liquitube just puts pictures on the side of the bottle with an ounce measurement below each picture to tell people how to use it. But even that can be confusing. For instance, take the picture of the ATV that they show. Below the ATV it says 32oz. Now some people probably think the 32oz is for the entire ATV. Well that isn't the case. They want you to use 32oz Per Tire! Years ago Liquitube even used to say on the bottle to use 32oz per tire on an ATV. Now they just show a picture with an amount below it. Now you'll come to find out that the 32oz they recommend doesn't match up to the formula they tell you to use to calculate how much each tire is supposed to get. So if you use the formula provided, you come to find that it calculates out to use less product per tire than what the bottle tells you to use. So that's very confusing as well. So if you use it long enough, you'll be able to know how much each tire will need from experience. Just make sure there's enough on the inside of the tire to coat the entire inside as well as leaving a bit left over to circulate in the tire so it can be ready for a large puncture if that ever happens. All in all, it's a good product that does what it claims. It lasts for as long as the tire does and it doesn't freeze up in the cold either! 5 stars!
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Reviewed in the United States on February 13, 2026
K
Verified Purchase
KW
Massapequa, US
★★★★★ 5
Worked on slow leak… one month already!!!
Style: 18oz
Edit: Still holding proper pressure at 2-months !!! Had a slow leak where my tire went from 44psi to ~18psi over 2-3 days… Dashboard light would let me know every few days that I had a tire problem and I would inflate the tire back up to 44psi… Anyway, I used this product and filled air back to 44 psi and it’s held the pressure for a month already !!!! Be sure to deflate tire to ~15 PSI before adding the product… it only took about 30 seconds to empty the container into my tire with the tire pressure low. Very happy with this product !!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

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