Description
xVehicles equipped with automatic transmissions are normally fitted with a TCU (Transmission Control Unit). This control unit manages all aspects of the transmission functionality i.e. gear shift and torque limitations. The TCU works together with the engines ECU by sending and receiving real time data across the vehicles network system, so when tuning the engines ECU for more performance it is recommended to have the TCU parameters changed at the same time. This will then ensure both control units continue to work in harmony and fully optimize the performance and drivability of the vehicle.
The number of the parameters that can be changed is dependent on the application, however here are some of the key benefits you will gain:
- Shift Speed – Increasing the speed in which the gearbox changes gear.
- Torque Limiters – Increasing the torque limiters ensures the transmission cannot limit the performance of the engine.
- Hydraulic Pressure – Increasing the hydraulic pressure can increase clutch clamping pressure to prevent clutch slip on highly tuned vehicle.
- Shift points – Changing the RPM limiter of the engine is often not possible without modifying the TCU software.
Some TCU’s have a higher level of manipulation available and advanced options like the following can be activated: Launch Control, Full manual Mode and Kick down delete.
Fits:
- Audi A4 (B8/B8.5) 2008-2016 1.8/2.0 TFSI
- Audi A4 (B9) 2016-2021 2.0 TFSI
- Audi RS3 8.5Y 2024 On
- Audi RS3 8V 2015-2017
- Audi RS3 8V Facelift 2017-2020
- Audi RS3 8Y 2021-2024
- Audi S3 8V
- Audi S3 8Y (2020-)
- Audi S3 8Y Sportback (2020-)
- Audi S4 B8/8.5 3.0T
- Audi S4 B9
- Audi S5 B8/8.5 3.0T
- Audi SQ5 2012 On
- Audi SQ5 2018 Onwards
- Audi TT Mk2 2.0 TDI
- Audi TT Mk2 2.0 TSI
- Audi TT Mk2 TTRS 8J
- Audi TT Mk2 TTS 8J
- Audi TT Mk3 (2015-) 2.0 TSI 2015 Onwards (8S)
- Audi TT Mk3 (2015-) 40 TFSI (2021-) (8S)
- Audi TT Mk3 (2015-) 45 TFSI (2021-) (8S)
- Audi TT Mk3 (2015-) 45 TFSI (8S)
- Audi TT Mk3 (2015-) TTS 8S
- Audi TT Mk3 (2015-) TTS 8S (316bhp late 2022-)
- Cupra Leon 2.0 TSI (245 BHP)
- … and 27 more vehicles
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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