Weistec BMW N55 W.2 ECU Tune

Product Details

All 2020 models require bench flashing at this time.  If you have a 2020 Model, please contact us at 330-331-2003.
 

ECU Tuning Process: www.weistec.com/howtotune
 

The N55 vehicles are built very stout from the factory and respond beautifully to modifications.  While they have great performance right off the showroom floor, it is just too hard to leave them untouched. 

The Weistec N55 Tune provides solid gains throughout the entire powerband, with gains of +60WHP* and close to 60WTQ* torque!  This is on an otherwise 100% stock vehicle, including the air filters.

In addition to the performance gains, there are a couple of options available for race vehicles.  First is the "Burble".  This is best compared to that of the M4 GTS "burble" which comes from the factory with this in a mild form.  You can choose "Off" "Mild" or "Aggressive" for the "Burble".  Many seem to prefer "mild", but we gladly will let you choose based on your preference.
 

Once you place your order for the tune and the Cypher Handheld, we ship you the handheld complete in a case with all necessary cables and a USB drive. On that USB drive is a PDF instruction manual for the tuning process. The Cypher must first be updated using the link the PDF instruction manual then paired to the vehicle to either read the stock file or identify the software versions on the ECU. After that process, the handheld is connected to a PC so that you can download the ID file and email it to [email protected] so that they can begin the process of making your tune file. Once ready, an encrypted file which contains both the stock file and the tune file, will be sent back to you. You upload the file to the handheld and then use the handheld to flash the car.

• No need to send in your ECU / DME computer
• Swap tunes file or return the stock within minutes.

What does all this mean to you?  More power, sharper throttle response, and consistent performance with out sacrificing refinement. 

Key Features:

• Improved Throttle Response

• Optimized Fuel, Spark, and Boost

• 60 Wheel Horse Gains*

• 60 Wheel Torque Gains*

• "Burble" Options (for Race Vehicles only)

• Cold Start (for Race Vehicles only)

• Disabled Speed Limiter

*Power gains vary based on model, modifications, fuel, and running conditions.

*Must be purchased with Cypher Handheld Programmer Tuner, Please see ES#4707682 (included in this kit).

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

Prop 65 Warning

Kit Contents

Product Q&A

Lifetime Replacement