SKU: 45840655186

Fabspeed Valvetronic X-Pipe Cat-back Exhaust System - Porsche / 718 / GT4 / RS

Sale price$3301.04 Regular price$3667.82
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

Fabspeed Valvetronic X-Pipe Cat-back Exhaust System - Porsche / 718 / GT4 / RSTransform your GT4 RSs exhaust note. Our X pipe design gives the GT4 RS the same high pitched wail as the GT3 and its 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


Transform your GT4 RS’s exhaust note. Our 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 cast X-Pipe to tie the two 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.”

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, quietting 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 6 WHP at 8100 RPM and 9 ft/lbs of TQ at 3500 RPM.

FEATURES:

  • Fits all Porsche 718 GT4 RS 2022+ Models worldwide
  • Dyno proven power gains of 6 WHP and 9 ft/lbs of TQ
  • 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 U.K.
  • 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, no cutting or welding required
  • 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: 45840655186

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4.2 ★★★★★
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Kindle Customer
Natrona Heights, US
★★★★★ 4
Thick pillow
Size: Queen (Pack of 2)
Nice pillows but too thick for me.
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Reviewed in the United States on May 17, 2026
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Lily
Port Orchard, US
★★★★★ 5
Soft
The packaging is very good, the logistics is fast, and it is very soft.
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Reviewed in the United States on April 23, 2026
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EK
Fort Morgan, US
★★★★★ 5
I love these pillows
Size: Queen (Pack of 2)
These are so comfy. I love them. They have made my life so much better. I have really bad insomnia. I was also getting neck pains from my old pillows. These are just the best for sitting up and sleeping. I can not tell you how much these changed my life. They are worth a shot if you are looking for something. 10 out of 10.
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Reviewed in the United States on April 29, 2026
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Amine
Phoenix, US
★★★★★ 3
Pillows not exactly down..
Size: Queen (Pack of 2)
I just got the pillows the tag say 80% polyester and 20% inner filling and 70% down and 20 % feather + ? Outer filling.. which is not what is advertised in the title. However AI indicated most pillows are constructed with two layers because of it is all dow it will be flat ... anyway the pillows will be tested after tomorrow as they recommend to leave it for one day before using it.. To be continued later
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Reviewed in the United States on June 1, 2026
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Amazon Customer
Whiting, US
★★★★★ 5
Great for side sleepers
It always seems hard to find the perfect pillow when you’re a side-sleeper. This one is great. It comes compressed so you will want to allow some time for it to fully fluff back up. The cover is soft and smooth. I love that it isn’t overstuffed. It provides gentle support and a lot of comfort. I was worried it may be too warm since it is polyester, but it is very breathable and I have not had any issues with feeling overly warm on it. It fits a standard size pillow case. It’s not overly stuffed like some other pillows I’ve tried that were specifically for side-sleepers. I think this world be a great pillow for any sleeping position, really. I wasn’t expecting to love a pillow this affordable, but it gets the job done and I get a good night of sleep. I’ll be purchasing some more for our guest room.
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Reviewed in the United States on May 10, 2025

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