ESS E-Flash N54 ECU Performance Software

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)

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.

Stage 1 and stage 2 software will be provided in the purchase price. All emissions control systems remain active on the car.

*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.

ESS Tuning shipping & returns

• Returns: authorized in advance with a return authorization (RMA) number marked on the outside of the package. Parts must be clean, unused, in original condition and packaging, and received within 30 days of the sale date. The customer pays return shipping.
• Restocking fee: 20% on all refunds, except in case of an ESS error. Original shipping costs are non-refundable.
• Final sales: performance ECU software is final after 14 days of delivery or once linked to a car; software and parts for used, custom or non-ESS supercharger systems and special-order items are final.

To start a return or ask a question, contact us with your order number.