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 2 - Aug 7

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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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BWildcat
Charlottesville, US
★★★★★ 5
Sparkle, Comfort & Durability—My Little One Loves Them!
Size: 6 Toddler, Color: Navy/Purple
From the moment my daughter slipped on the Skechers Girls’ ULTRA FLEX 3.0 – Sparkle Show sneakers, her face lit up—not just because of the dazzling sparkle, but from how comfy and lightweight they feel on her feet. She is almost 2 and can easily get them on and off by herself. The quality is great and they are easy to clean. They fit true to size and have a fun stylish sparkle.
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Reviewed in the United States on August 8, 2025
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Kyra Eckles
Grantham, US
★★★★★ 5
Pretty and comfortable
Size: 1 Little Kid, Color: Navy/Purple
Perfect fit, sizing is right. My granddaughter loves them! She said she can run faster and they're easy to take off a6put on her feet.
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Reviewed in the United States on October 29, 2025
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Mimi
Phoenix, US
★★★★★ 5
My 83 year old mom loves her pair!
Size: 2 Little Kid, Color: Black/Pink
Bought these for my 83 year old mom, who has dementia . She. Loves. Them. Easy on and off for her. The fit was perfect. Normally a size 2 at the store is too big, these fit perfectly. When she is wearing them she makes sure to ask you if you like them. I believe the color of them makes it easier for her to find her shoes.
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Reviewed in the United States on February 24, 2026
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Aaron Zarbock
West Palm Beach, US
★★★★★ 5
Nice shoe for little kids
Size: 10.5 Little Kid, Color: Black/Pink
Very cute! Super comfortable and very easy to get on for my five year-old. She loves them.
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Reviewed in the United States on September 17, 2025
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AdieD
Phoenix, US
★★★★★ 5
Slip ins for girls
Size: 5.5 Big Kid, Color: Navy/Purple
Slip ins; super comfortable, my granddaughter loves them.
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Reviewed in the United States on April 13, 2026

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