Note: This is a reflash of your original ECU. If your vehicle is running newer software, tuning may not be possible. The Cypher Handheld is not compatible with 2020+ models.
Weistec specializes in engineered performance solutions with designs that match and often
exceed OEM levels of precision and quality. Our ECU Tune for the 4.0L TFSI EA825 V8 is
designed to enhance the vehicle's characteristics without compromising the drivability or reliability
of the vehicle. What does all this mean to you? More power, sharper throttle response,
and a complete focus on the driver makes this the perfect addition to your Audi RSQ8 4M or Audi RS6
for a much more enjoyable experience. For more information please feel free to contact our performance specialists via phone or
email at sales@weistec.com.
ECU Tuning Process How do I get my ECU tuned?
Key Features
Vehicle fitment
- 2012-2019 Audi S8 Base
- 2013-2024 Audi RS7 Sportback Base
- 2014-2024 Audi RS6 Base
- 2016-2018 Audi RS7 Sportback Performance
- 2018-2022 Lamborghini Urus Base
- 2019-2023 Audi RSQ8 Base
- 2021-2023 Audi RS6 Avant Base
- 2022-2024 Audi RS7 Sportback Performance
- 2024 Audi RS6 Avant Performance
- 2024 Audi RS7 Sportback Performance
Weistec part number: 05-408-00166-0
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.