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ESS E-Flash N54 ECU Performance Software

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Product Description

ESS E-FlashFlash 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 335i 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 and cat/no cat in the DirectFlash unit. ESS E-Flash also includes full engine diagnostic functionality and code clearing capabilities.

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

DirectFlash 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)

Custom tuning available on an hourly basis, files can be loaded with DirectFlash 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 tuned, 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.

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Product Reviews

  1. From fast to fun....

    Posted by Traveling Mack, Norway on 22nd Oct 2013

    This is amasing. I have had it in my car for over a year now. And the car is so fun and quick to drive.

  2. Amazing smooth power gain

    Posted by Anders on 20th Jul 2013

    Ordered this software for my 2010 Z4 35i. It was easy to install, and after installation there was no fault codes. The power gain is fantastic, and the car is also much smoother to drive now. Very satisfied with this product!

  3. INstant Power

    Posted by Shane on 6th Apr 2013

    The results are great! I only wish you could have the freedom to make your own tunes using the OBDII they send you. I would make this 5 stars if I have the capability to do this. Also, I would like to do small things with this like the on the go convertable mode (just tweaking the speed allowandce to about 20 mph and tuning the exhaust (just leaving the flaps open)

Product Videos

ESS E-Flash ECU Performance Software Cable Overview (05:06)
Software Suite Installationhttp://www.youtube.com/watch?v=72Pb4ArfXp4&feature=player_detailpage#t=3sCable Marriagehttp://www.youtube.com/watch?v=72Pb4ArfXp4&feature=player_detailpage#t=22sDME/ECU Backuphttp://www.youtube.com/watch?v=72Pb4ArfXp4&feature=player_detailpage#t=64sPerformance File Flashhttp://www.youtube.com/watch?v=72Pb4ArfXp4&feature=player_detailpage#t=190sCodes & Adaptationshttp://www.youtube.com/watch?v=72Pb4ArfXp4&feature=player_detailpage#t=249s
  • ESS E-Flash EC...
    Software Suite Installationhttp://www.youtube.com/watch?v=72Pb...