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Weistec BMW S55 ECU Tune W.1
Weistec BMW S55 ECU Tune W.1
Weistec BMW S55 ECU Tune W.1
Weistec BMW S55 ECU Tune W.1
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Weistec BMW S55 ECU Tune W.1

Weistec
WEI05-555-00067-3
Programmers & Tuners
$1,199.00
50 State Legal S55 ECU Calibration per EO # D-691-4.  All 2020 models require bench flashing...
$1,199.00

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Weistec BMW S55 ECU Tune W.1
50 State Legal S55 ECU Calibration per EO # D-691-4. 

All 2020 models require bench flashing at this time.

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

 

The Weistec S55 tune provides solid gains through out the entire powerband, with signifigant peak to peak gains as well as large mid range gains!  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".  The M4 GTS comes from the factory with this in a mild form.  You can choose "Off" "Mild" or "Aggressive" for the "Burble".  Many seem to prefer aggressive, but we gladly will let you choose based on your preference.

The other race vehicle option would be Catalyst Heating.  On race vehicles, many times the catalysts are removed.  In those cases, there is no need for the catalyst heating which would just be making excessive noise on a cold start of the race vehicle.  If you have a race vehicle with the catalysts removed, Catalyst Heating can be disabled.

 

Cypher | 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.
*2019 Models manufactured after April 2019 that have recently received an update may not work with OBD2 flashing.  All 2020 models require bench flashing at this time

  Weistec S55 ECU Power 

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

Note: This is a reflash of your original ECU

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

Key Features:

  • Improved Throttle Response

  • Optimized Fuel, Spark, and Boost

  • M4 GTS "Burble" Mild and Aggressive Options (for Race Vehicles only)

  • Disabled 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

  • 2014-2019 BMW M3 Base
  • 2014-2019 BMW M4 Base
  • 2016-2017 BMW M4 GTS
  • 2016-2019 BMW M3 Competition
  • 2016-2019 BMW M4 Competition
  • 2018-2020 BMW M4 CS
  • 2018-2021 BMW M2 Competition
  • 2018 BMW M3 CS
  • 2020 BMW M2 CS

Installation manual

Weistec part number: 05-555-00067-3 · UPC: 810089562609

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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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