Fabspeed XperTune Performance Software for F8x BMW M3 & M4

Unlock substantial gains on the F8x BMW M3 & M4 with Fabspeed XperTune Performance Software, delivering up to +75whp and +100lb-ft while preserving stock-like manners. Calibrated to enhance boost, ignition, and torque management strategies, XperTune sharpens throttle response and midrange punch without compromising drivability. The result is a smoother, harder-pulling powerband that elevates everyday commuting and spirited drives alike.

Features

• +75whp / +100tq
• Improved engine performance
• Drivability remains uncompromised
• Handheld tuner

Applications

• BMW M3: F80 (2014-2020)
  [S55 – 3.0L I6 twin-turbo]
• BMW M4: F82, F83 (2014-2020)
  [S55 – 3.0L I6 twin-turbo]
  

Notes

• Please review the tuning guide in the instructions and email the ECU tuning Information form. This form is utilized to ensure your needs are met and to consider your modifications for the best possible product.
• You must have access to a PC / Windows computer (Mac OS not supported) to upload your factory file information to Fabspeed via email and in turn apply their ECU Tune to your handheld device
• Upon sending your vehicle information, Fabspeed’s 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
• This device allows you to flash the vehicle back to stock without sending in your ECU

Tuning Notes

• Step 1 – Read stock data on vehicle via OBD-II port with handheld
• Step 2 – Interface handheld with software on your computer and send in data to Fabspeed Motorsport via email
• Step 3 – They 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
• Step 4 – Write the Fabspeed ECU Tune to your handheld, then to the vehicle with the handheld

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.