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Weistec BMW N55 ECU Tune W.2
Weistec BMW N55 ECU Tune W.2
Weistec BMW N55 ECU Tune W.2
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Weistec BMW N55 ECU Tune W.2

Weistec
WEI05-455-00076-2
Programmers & Tuners
$899.00
Note: This is a reflash of your original ECU All 2020 models require bench flashing at...
$899.00

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Weistec BMW N55 ECU Tune W.2

Note: This is a reflash of your original ECU

All 2020 models require bench flashing at this time.

ECU Tuning Process: How do I get my ECU tuned?

The N55 vehicles are built very stout from the factory and respond beautifully to modifications.  While they have great performance right off the show room 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 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.

Please check with our compatibility list below to see if your vehicle can benefit from Weistec's ECU Calibration!

 

Cypher Handheld | Powered by Weistec

The Cypher is an optional upgrade when purchasing a Weistec tune for your Fxx series BMW. Simply navigate our website to the tune you wish to purchase. On the tune's product page there will be a drop-down menu giving the option to add Cypher to your tune order. From there, the order is processed, and a Cypher tool will be shipped to you

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



Weistec N55 ECU Power 

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.


Tuning Process: Cypher Handheld Tuner

Vehicle fitment

  • 2010-2013 BMW 135i Base
  • 2010-2016 BMW 535i xDrive Base
  • 2010-2016 BMW 535i Base
  • 2010-2016 BMW 535i Gran Turismo
  • 2010-2016 BMW 535i Gran Turismo xDrive
  • 2010-2017 BMW X3 xDrive35i
  • 2011-2012 BMW 335xi Base
  • 2011-2015 BMW 335i xDrive Base
  • 2011-2015 BMW 335i Base
  • 2011-2018 BMW 640i Base
  • 2011-2018 BMW X5 xDrive35i
  • 2011-2019 BMW X6 xDrive35i
  • 2012-2016 BMW M135i xDrive Base
  • 2012-2016 BMW M135i Base
  • 2012-2018 BMW 640i Gran Coupe Base
  • 2013-2015 BMW 740Li xDrive Base
  • 2013-2015 BMW 740Li Base
  • 2013-2015 BMW 740i Base
  • 2013-2015 BMW 740i xDrive
  • 2013-2015 BMW X1 xDrive35i
  • 2013-2016 BMW 435i xDrive Base
  • 2013-2016 BMW 435i Base
  • 2013-2018 BMW 640i xDrive Base
  • 2013-2018 BMW X5 sDrive35i
  • 2013 BMW 135is Base
  • 2014-2016 BMW M235i Base
  • 2014-2018 BMW X4 xDrive35i
  • 2015-2016 BMW M235i xDrive Base
  • 2015-2017 BMW X4 M40i
  • 2015-2019 BMW X6 sDrive35i
  • 2016-2018 BMW M2 Base

Installation manual

Weistec part number: 05-455-00076-2 · UPC: 810089562654

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All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier. Special arrangements may need to be made for international orders and oversize packages. In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim. Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package. 1) Keep the product and its original packaging and box Make a list of the damaged or lost item(s) 2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us 3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued. 4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you. If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file. SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement. In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect. To return a item back to us, please do the following: 1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused. 2. Package the item up in original packaging unless deemed unuseable 3. Include the UNUSED parts and any additional information that was included 4. Include a copy of your receipt 5. Write a brief description of the problem with the product 6. If you have a receipt for the return shipping include as well 7. We DO NOT accept any freight collect packages 8. Once we have received the above information we will notify you via email or phone and let you know the status.

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