Description
Fabspeed’s handheld OBD-II tuning solution lets the BMW M5 be flashed at home — no ECU removal or bench flashing — delivering maximum power and drivability without sacrificing reliability. The performance software refines sensor strategies, air/fuel ratios, and boost targets to increase horsepower, torque, and overall driving refinement.
![Fabspeed XperTune Performance Software for F90 BMW M5 [FS.BMW.F90.ET]](https://diamondusedparts.com/wp-content/uploads/2026/04/fabspeed-xpertune-performance-software-for-f90-bmw-m5-fsbmwf90et.jpg)





Reviews
There are no reviews yet.