Pay in 4 interest-free payments of $399.88 Learn more
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Tunes for specific octane
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tune and shipping
All available features for your tune will be discussed when our staff members are assisting you at your appointment time
We ship you a My Genius handheld device which requires a Windows 7+ computer to pass files in between
BMW 540i 2021 iflash Tunes for specific octaneExpertly calibrated and meticulously refined, DME Tunings ECU software is guaranteed to give you MORE of a good thing. More horsepower, more torque, and a more exhilarating driving 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
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