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  • N54 Stage 1
  • N54 Stage 2
  • Image 3

ESS E-Flash N54 ECU Performance Software


Product Description

ESS E-Flash N54 ECU software is a result of extensive testing and exact calibration of ECU parameters to allow conservative performance gains on an otherwise stock car. The ESS N54 software is developed and tested in extreme heat in the Arizona desert as well as extreme cold temperatures in Scandinavia. The end user can select between 2 different power levels by simply switching the ECU map through E-Flash. ESS E-Flash also includes full engine diagnostic functionality and code clearing capabilities. 

E-Flash Stage 1 :
Top Speed Governor: Removed
RPM Limit: 7000RPM
Fuel requirement: 91US/95Euro
Horsepower: 355 DIN (Stock 306)
Torque: 480NM (Stock 400NM)

E-Flash Stage 2 :
Top Speed Governor: Removed
RPM Limit: 7200RPM
Fuel requirement: 91US/95Euro
Horsepower: 400 DIN (Stock 306) - 390DIN if used with stock intercooler
Torque: 550NM (Stock 400NM)

Available options :

-HFC or catless exhaust
-Calibration for upgraded factory turbos (up to ~19PSI peak)

Custom tuning available on an hourly basis, files can be loaded with E-Flash unit through email.

When ordering this product you will receive 1 ESS E-Flash OBD2 programming system which will VIN lock to your car.

This system can be used to program between stock and several tuned files, and it can also be used to load custom files/race fuel files/updates received from ESS over email.

Stage 1 and stage 2 software will be provided in the purchase price.


*Correction factor for drivetrain loss is 15% above RWHP as seen in dynograph (RWHP/0.85)

Application intended for: All 135i, 335i, 535i from 2007 2008 2009 2010 2011. 135is Z4 35i, 35is, 335is from all years.

Product Reviews

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  1. Good product 4 Star Review

    Posted by on Jun 2nd 2016

    Easy to use and worked very well. Quality.

  2. Awesome tune! 5 Star Review

    Posted by on Dec 25th 2015

    Very nice tune for a good price. Runs very smooth on gearshifts after the tune.

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