Ecotune Transmission Control Unit Upgrade for 2022+ DQ381 Gearboxes (EA888 GEN 4)

Elevate your driving experience with Ecotune’s cutting-edge Transmission Control Unit Upgrade on the (otherwise) locked DQ381 Gearbox EA888.4 Platform.

Developed specifically for high-performance VAG models such as the MK8 Golf R / GTI and Audi S3 8Y, Cupra Leon, Formentor, Skoda Octavia etc, this upgrade redefines what’s possible in gearbox performance. By enhancing responsiveness, torque management and overall drivability, it transforms every journey into a thrilling experience of precision and control, whilst retaining safety and reliability throughout.

Key Benefits

•Reduced Paddle latency for lightning-fast gear changes.

•Enhanced cooling and component protection routines - send it with confidence.

•Motorsport Variable RPM Launch Control with instant response - faster off the line, every time.

•Quicker shifting speeds in Sport & Manual modes.

•Recalibrated shift point logic to fully leverage Ecotune’s upgraded ECU torque profile.

•Increased Torque Limits for optimal ECU-TCU Compliance.

•Refined Drivability logic for a smoother, more connected driving experience.

•Full Manual Mode option for ultimate driver engagement.

Tested on Our Own MK8 Golf R – Across the Globe and on the Track

Tested on our development MK8 Golf R – beta tested across the Globe and extensively refined on track. At Ecotune, we don’t just engineer performance—we live it. Our development process provided a detailed understanding of the transmissions capabilities in various scenarios. To ensure it delivers an exceptional customer experience. We torture tested on international roads, high-speed tracks and demanding drag strip setups. This process guarantees it flawless performance, no matter where or how you drive. From precise shift points on the Autobahn to lightning-quick launches at the drag strip, this product has been proven to excel in every environment.

Why Choose Ecotune?

At Ecotune, innovation is at the heart of everything we do. With many years of expertise in performance tuning, engineering and product development, we’ve created an upgrade that sets a new benchmark in the industry.

Our commitment to quality is more than just a promise—it’s proven through a meticulous testing process. From local roads to international motorways and from high-speed track setups to drag strip performance, this upgrade has been put through the ultimate test. We’ve experienced its capabilities firsthand, ensuring it’s not just reliable—it’s transformative. Having this particular upgrade on our very own vehicle with multiple drivers, allows us to find each and every weakness and iron them out.

When you choose Ecotune you’re not just enhancing your vehicle — you’re unlocking a world of performance, precision and control — proven globally, perfected on track, and trusted by the masses.

Installation:

We can install this product at our HQ in Glasgow, once selected, this pricing includes labour and a gearbox oil & filter change.

Your local Ecotune Dealer can also offer this upgrade from start to finish at their premises.

Don't hesitate to reach out to the Ecotune team, or your local dealer for more information & details on how to get booked in.

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Returns 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.

Ecotune do not assume responsibility for the use of this part on public roads in the UK or abroad where emissions controls have been removed. It is the customer’s responsibility to ensure compliance with the rules and laws of the area of use. We would like to advise that it is illegal to remove any emission control devices or increase the exhaust noise limit on vehicles permitted to drive on public roads in the UK and most other countries around the world. Please check the rules and laws relating to this in your country. Any parts supplied or work carried out by Ecotune are strictly for off-road use and may fail an MOT test. This means that we cannot accept any responsibility for vehicles being driven on public roads where removal of emission control devices is prohibited. If you carry out this work at our premises, we would not be able to road test afterwards..