Unlock the full potential of your B58 engine - from a simple software tune to a full-blown build.
 
Whether you're looking for a sharper throttle response and more torque for daily use, or a track-ready monster with serious power, our staged tuning solutions for the BMW B58 M140i and M240i deliver reliable, repeatable results across every level of performance.
 
Stage 1 ~ 445 hp
Upgrades Required:
ECU remap / flash-only — no hardware needed to hit ~445 hp.
Optional bolt-ons for better sound/response:
High‑flow air filter (K&N or Pipercross).
Cat‑back exhaust (with or without GPF delete depending on model).
Optional TCU tune for automatic ZF gearbox.
 
Stage 2 ~465 hp
Required Hardware Add‑Ons on top of Stage 1:
Catless or high‑flow downpipe (with sports cat to retain legality).
Possible cat‑back exhaust for further flow and sound.
ECU remap tweaked for new exhaust flow and slightly increased boost.
 
Stage 2+ ~475 hp
Requried Hardware on top of Stage 2:
High‑pressure fuel pump (TU-pump from later B58 models) to support higher fueling needs.
ECU remap optimized around new fueling capacity (approx. ~475 hp).
 
Stage 3 ~580 hp
Hardware Requirements:
Hybrid turbocharger (upgraded compressor/turbine internals).
Catless high‑flow downpipe + full cat‑back exhaust.
Intake piping or induction kit.
Large front-mounted intercooler / charge cooler (plus optional water/methanol injection for cooling)
ECU calibration to suit all hardware.