SKU: 2393946477

Fabspeed Mercedes-Benz G-Wagen G63 AMG XperTune (2015-2018) (FS.MER.G631518.ET)

Sale price$1632.12 Regular price$1813.47
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Fabspeed Mercedes-Benz G-Wagen G63 AMG XperTune (2015-2018) (FS.MER.G631518.ET)Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86. 1854. 12(a)(3), Clean Air Act 40 CFR 1068. 101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine

Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.

Achieve maximum power from the biturbo V8 without sacrificing drivability or reliability by fine-tuning the engine's performance. Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECU's that traditionally required bench flashing. No longer do you need to remove your ECU and mail it in for a tune. The Handheld device interfaces with the OBD-II port on your vehicle and to complete the tuning process. Simply flash your G-Wagon with a Fabspeed ECU XperTune utilizing the included handheld tuner. Our XperTune upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure.

POWER:

Our XperTune gets the most power out of your G-Wagon while keeping all the engine parameters safe. You will unleash massive curve gains of 80 HP and 130 ft/lbs of TQ.

FEATURES:

  • Fits all Mercedes Benz AMG G63 G-Wagon Vehicles from 2015-2018
  • Power gains of 80 HP and 130 ft/lbs of TQ
  • The handheld device saves the factory tune and can be used to reflash the car back to stock at any time
  • Simple straight forward user interface
  • Great part-throttle drivability
  • Co-developed in Germany and USA
  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

TUNING PROCESS:

  1. Read stock data on the vehicle via OBD-II port with Handheld
  2. Interface Handheld with the software on your computer and send in data to Fabspeed Motorsport via email to [email protected]
  3. We use this data along with the information you provide about your vehicle to write a tune for your specific setup and email back your custom tune in 1-2 business days
  4. Write the Fabspeed ECU Tune to your Handheld, then to the vehicle with the Handheld
  5. Enjoy your increased performance!

NOTES:

  • Please review our Tuning Guide in the instructions above and email the ECU Tuning Information form to us. We utilize this form to ensure we meet your needs and consider your modifications to deliver the best possible results.
  • You must have access to a PC / Windows computer (Mac OS not supported) to upload your factory file information to us via email and in turn apply our ECU Tune to your Handheld device.
  • Upon sending us your vehicle information, our tuner will email you a custom ECU Tune(s) within 1-2 business days.
  • The Handheld device "marries" with your vehicle and can only be used on one vehicle.
  • Special requests and tune file upgrades may be subject to additional fees.

Need some help using our XperTune Handheld Tuner? Watch our tuning tutorial video!

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: 2393946477

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DiAngelo Woods
Draper, US
★★★★★ 5
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Color: 5 FT Black +5 FT Red, Size: 4 AWG
These cables are more than adequate for car audio installation. Great cables and flexible as well
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Reviewed in the United States on April 4, 2026
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Chad Welch
Waukegan, US
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Good fit
Good quality and fits perfectly
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Kevin Boynton
Whiting, US
★★★★★ 5
Works
Fit my 1996 xr6 150 just fine. Engine runs at correct temperature so they are working as they should.
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Reviewed in the United States on March 13, 2026
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Champ
Pawtucket, US
★★★★★ 5
Quick delivery
Fit like they should and seems to be working great
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GINGER B.
Lowell, US
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Reviewed in the United States on December 30, 2025

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