BMW X3 35D – Stage 1 ECU + TCU Remap

This BMW X3 35D came in for a Pipercross panel filter and NVM Stage 1 ECU and Gearbox remap. Sharing the same engine as the popular FXX BMW 335d, the gains are immense. Dyno vid below!!

As with all Xdrive vehicles.. the safest way to dyno them repeatedly is in RWD mode. This keeps diff from overheating.

Out comes the old and tired panel filter, time for more free flowing air!

Swap done, time for some immense gains…

On it’s stock run, it made: 285 Bhp and 589 Nm.

After a few hours of dyno tuning, we managed to push: 370 Bhp and 791 Nm

Overall Gains: +88BHP and +202 NM. A real wolf in sheeps clothing!!!