Car Tuning & ECU Remapping Software

ECU Tuning & Remapping Software

Viezu offers the very best in-car tuning software and support, including ECU tuning & Remapping files. Our ECU tune software is all written in-house by our highly skilled and highly experienced remap support team.

If you’re looking to become a Viezu Approved Dealer or you are a current Master File writer looking for a file service with technical support backing you up then check out our ‘become a dealer’ page.

Laptop and ECU editing software

The Viezu technical team offer ECU flash software support 7 days a week, 364 days per year. If you are serious about your car tuning services and want the very best ecu remapping software and tuning files – come and tune with the best.

If you are a master tuner or file write and need access to original files in order to work an ECU or vehicle you have in for tuning then check out our huge Viezu Master Files database of original files.

Is your vehicle in need of an ECU tune? Here you will see just a couple of the car tuning software and ECU remapping software downloads we offer.

Kess3 and a laptop

Viezu offers a fresh take on car tuning software and ECU remapping software solutions, specialising in performance tune programs and ECU software for ultimate control over your performance car tuning. We also provide fuel management software, speed limiter moving and DPF removal, making Viezu a one-stop source for all of your ECU software requirements.

With many years’ experience in the field of car tuning and chip tuning software, the Viezu team has created a solution which couples cutting edge tuning software, award-winning ECU remapping and ECU tuning files, with real research and development, along with market-leading customer service and dealer support.


ECU Tuning Files & ECU Flash Software


Click on the download button to save the ALIENTECH Suite software to your computer.

Please note ALIENTECH Suite is only supported on Windows operating systems and is recommended to be installed on Windows 10 or later.

ALIENTECH Suite and KESS3 OBD user guide

K-Suite (V-Flash) Software - 3.0

Uploaded: 31/05/2018 @ 11:27am

Please note Windows 8, 8.1 and 10 users need to put Windows into unassigned Driver mode before installing Ksuite, please download the relevant manuals below for further information.

Windows 8 Installation Instructions

Windows 8.1 Installation Instructions

Windows 10 Installation Instructions

Kess 3.0 User Guide

KTAG 3.0 User Guide

V-Switch Drive

Uploaded: 06/11/2018 @ 08:55am

Click the ‘DOWNLOAD‘ button to save the V-Switch Drive software to your computer.

Press on the hyperlink below to open the V-Switch Driver user guide

V-Switch Drive user guide

K-Suite 2.39 Download

Uploaded: 23/01/2020 @ 09:50am

RTD Flasher Download

Uploaded: 25/07/2022 @ 10:51am

Click the ‘DOWNLOAD‘ button to save the RTD Flasher Software & Installer to your computer.

RTD Flasher User Guide – JLR Transmission Tuning

V-Connect Slave

Uploaded: 02/02/2024 @11:35am

Click the ‘DOWNLOAD‘ button to save the V-Connect Slave software.

The file is in a zipped format and will need to be unzipped before installing.

V-Connect Installation Guide

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