A white 1-series with a N20 engine and a fantastic 8 speed automatic gearbox! N20 tuning at its best, increasing the engine’s power by almost 100hp. All this recipe requires is an upgraded downpipe and an #Etuners Stage2 ECU remap.

The 125i was measured stock with an upgraded downpipe installed and made 193.5whp on dyno. After the custom remap, power rose to 274.8whp, gaining more than 80whp and huge amounts of torque!

Upgrade specifications

  • 98RON or 100RON fuel
  • Upgraded downpipe
  • #Etuners Stage2 custom ECU remap


Performance results

  • Maximum power at the wheels: 274.8whp (measured stock with downpipe 193.5whp), gains 81.3whp
  • Maximum torque at the wheels: 345.1 ft*lbs (measured stock with downpipe 223.8 ft*lbs), gains 121 ft*lbs

For more information about our BMW remaps, please visit:

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