BMW X4 M40i 2020

DME Tuning Verified independent store

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Expertly calibrated and meticulously refined, DME Tuning’s ECU software is guaranteed to give you MORE of a good thing. More horsepower, more torque, and a more exhilarating drivin g experience by delivering usable power through improved throttle response and torque management. With additional ft. lbs. of torque through the mid-range, acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range. DME Tuning saves your stock/factory ECU settings so that you can revert your vehicle back to stock settings at any time. Tuning for specific octane Check engine light removal for downpipes (off-road use only) Top speed limiter removal Cold start On/Off Extend or add burble when available Requirements Requires ECU to be mailed in. This upgrade requires you to send us your ECU for re-programming. You will be emailed a download link with detailed instructions after adding this to your cart and checking out. You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in. The mail in form is available for download on the bottom of our homepage. Shipping costs for sending an ECU to and from DME Tuning is the responsibility of the purchaser. You will be charged overnight return shipping at checkout. The ECU will be tuned the same day it is received and DME Tuning will then ship back the ECU using FedEx Overnight shipping. Show more