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  • Achieve maximum power gains and driveability without sacrificing reliability. Easily flash your Porsche GT2 RS with a Fabspeed ExperTune utilizing the included Handheld Tuner! Requires vehicle ECU to be sent in one time to be unlocked - See Instructions for more details.
  • Sport Catalytic Converters with ECU Tune adds an insane 75 whp at 7200 RPM and 108 ft/lbs of torque at 3200 RPM. Blast off!
  • Cat Bypass Pipes with ECU Tune adds an insane 71 whp at 7100 RPM and 107 ft/lbs of torque at 3250 RPM. Blast off!
  • Competition Cat Bypass Race Pipes with ECU Tune adds an insane 90 whp at 6600 RPM and 116 ft/lbs of torque at 3200 RPM. Blast off!

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Porsche 991.2 GT2 RS ExperTune Performance Software (2018+)


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HP (whp):

TQ (ft/lbs):

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New Product Line: Porsche 991.2 GT2 RS | Fabspeed Motorsport (04:13)
NEW PRODUCT LINE: We are extremely proud to announce the release of our Porsche 991.2 GT2 RS Product Suite! The 991.2 GT2 RS is marvel of engineering that is close to perfection from factory, so we're thrilled to offer SIX PRODUCTS that push the boundaries even further. Be one of the first to order or learn more at the link below! How do you guys think we did? ----------------------- Feel free to visit fabspeed.com, call or stop by with any questions, concerns or comments. ----------------------- Fabspeed Motorsport elevates the exotic car experience through personalized performance; offering more product options and configurations than any other exotic car tuner, allowing us to custom tailor a sound and performance solution that meets your exact needs and compliments your lifestyle. For over 20 years, Fabspeed has been engineering and manufacturing the world's finest stainless steel high performance exhaust systems and components, air intake products, ECU tuning, and more, specifically-tailored for high-end sports cars and exotics. From Porsche to McLaren, our expertise is unmatched and it shows in everything that we do. Our dyno-proven performance products provide an exhilarating driving experience and are backed by a Limited Lifetime Warranty. Fabspeed strives to be a force of innovation within the industry; dedicated to maximum performance, excellent service, and true care and concern for the development of products and services for exotic car enthusiasts.

Product Description

Houston, we're ready for take off!

Get the highest performance per dollar modification and achieve incredible power gains (+60 WHP & +85 FT-LBS) without sacrificing driveability or reliability. Fabspeed Motorsport offers an alternative hybrid tuning method for vehicles equipped with latest generation of ECU's that traditionally require only bench flashing. This new hybrid tuning process does require the ECU to be sent to us one time for unlocking so that it may be tuned and managed by the handheld tuner. No longer do you need to remove your ECU and mail it in for adjustments or to put it back to stock, just plug in the handheld tuner and simply flash your GT2 RS with the Fabspeed ExperTune or put it back to stock at anytime. The Handheld device interfaces with the OBD-II port on your vehicle and your computer to complete the tuning process. Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). Maps are available for completely stock cars, or for cars equipped with Cat bypass Pipes or Sport Cats, full exhaust systems, upgraded turbos, and more. 

You wouldn't believe all the power that's waiting to be unlocked in the 991.2 GT2 RS, Porsche left A LOT on the table. We've had ample time with a 2019 GT2 RS on our in-house Dynojet to unlock extra power on both stock vehicles and optimize performance with Fabspeed exhaust components.

Once we receive your ECU, our tuner will first unlock the ECU so the its can be tuned with the new ExperTune map and made compatible to be tuned with the optional handheld tuner. We will then ship your ECU and optional Handheld Tuner back to you for re-installation; no modifications to the vehicle are necessary.  


  • Fits all Porsche 991.2 GT2 RS vehicles (2018+)     


  • +60 HP and +85 TQ


  • Sport Catalytic Converters with ECU Tune adds an insane 75 WHP at 7200 RPM and 108 FT/LBS of torque at 3200 RPM
  • Cat Bypass Pipes with ECU Tune adds an insane 113 WHP at 6400 RPM and 125 FT/LBS of torque at 3250 RPM
  • Competition Cat Bypass Race Pipes with ECU Tune adds an insane 113 WHP at 6500 RPM and 130 FT/LBS of torque at 3200 RPM
  • Incredible increase in turbo spool and throttle response


  • This upgrade requires you to send us your ECU one time for unlocking and tuning - Shipped back with optional Handheld Tuner for future adjustments.
  • Please review our Tuning Guide below and include the ECU Tuning Information form inside the box when shipping in your ECU. We utilize this form to ensure we meet your needs and consider your modifications to deliver the best possible results.
  • While a vehicle equipped with bolt-on upgrades will experience maximum gains as a result of the increased efficiency of the engine, great power gains can be made on a completely stock vehicle!  
  • You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. Please contact us if you need to send the form in any other manner.
  • You must have access to a PC / Windows computer (Mac OS not supported) to upload new tune files or reset back to stock with your Handheld device. 
  • The Handheld device "marries" with your vehicle and can only be used on one vehicle.

No need to send your ECU in to return to stock - simply use the Handheld to flash back, then to your Fabspeed ExperTune again at any point!



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