SKU: 81657417167

Fabspeed AMG 63 4.0L V8 Bi-Turbo XperTune Performance Software (FS.MER.M177.ET)

Sale price$2067.72 Regular price$2297.47
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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Fabspeed AMG 63 4.0L V8 Bi-Turbo XperTune Performance Software (FS.MER.M177.ET)Performance ECU software upgrade improves horsepower, torque, and driving characteristics of the M177 4. 0L V8 Bi Turbo Engine by reprogramming various sensor inputs, air fuel ratios, and boost pressure. FEATURES: Fits all Mercedes Benz AMG 63 M177 4. 0L V8 Bi Turbo Vehicles: C Class E Class S Class GLS Class GLE Class GLC Class SL Class G Class Peak Gains: Stock 547 HP 664 TQ Tuned 595 HP 681 TQ Max Gains: 60 WHP 71 ft lbs TQ Fabspeed Motorsport

Performance ECU software upgrade improves horsepower, torque, and driving characteristics of the M177 4.0L V8 Bi-Turbo Engine by reprogramming various sensor inputs, air/fuel ratios, and boost pressure.                                 

FEATURES:

  • Fits all Mercedes-Benz AMG 63 M177 4.0L V8 Bi-Turbo Vehicles: C-Class / E-Class / S-Class / GLS-Class / GLE-Class / GLC-Class / SL-Class / G-Class 
  • Peak Gains:
    • Stock - 547 HP / 664 TQ
    • Tuned - 595 HP / 681 TQ
  • Max Gains:
    • 60 WHP
    • 71 ft/lbs TQ
  • Fabspeed Motorsport saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time

TUNING PROCESS:

  1. Read stock data on vehicle via OBD-II port with Handheld
  2. Interface Handheld with software on your computer and send in data to Fabspeed Motorsport via email to [email protected] 
  3. We use this data along with 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!

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

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.

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.

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: 81657417167

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★★★★★ 5
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This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
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Reviewed in the United States on March 26, 2026
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Brittany
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★★★★★ 3
Meh
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It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
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joshua nieves
Natrona Heights, US
★★★★★ 5
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Great quality office chair. Easy to put together as there is minimal assembly required with easy to follow instructions. The chair has many sitting options. Makes for a perfect chair to use all day long. Its an ergonomic chair that allows you to adjust tilt tension, arm rest height, chair height, and allows to actually move arm rest upward and out of the way. You can swivel and sway and roll around with ease. Perfect chair for sitting all day. The head rest provides great neck support and the padding is very comfortable and supportive. The wheels are strong and the entire chair is sturdy. Quality material, The cushion is made with memory foam as well as comfort foam. Such a quality chair. This is a great value for the money. I would recommend to anyone that sits for any period of time for work or otherwise .
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