Nobody can promise you a yes or no, and this page will not. What can be said is this: Forza, EA SPORTS F1, iRacing and Assetto Corsa Competizione all publish a telemetry output on purpose, for dashboards, motion rigs and companion apps. A tool that only reads that output is using a documented feature, not modifying the game. Each game’s own terms of service still apply, and only the publisher decides how they are enforced.
What “telemetry output” means
A telemetry output is data the game sends out by itself: speed, revs, pedals, tyre and lap data. The game decides what to send and where. A HUD receives it, just as a motion simulator or a wheel display does. For the technical picture, see how racing games send telemetry.
What the publishers document
- Forza Horizon 6
- Forza Support publishes a Data Out documentation page. It describes the feature as the technology that powers motion sleds and companion apps, configured in the game’s settings, with one-way UDP traffic and no data received by the game.
- EA SPORTS F1 25
- EA publishes the UDP specification on its forums, including the 2026 Season Pack version. UDP telemetry is switched on in the game’s telemetry settings.
- iRacing
- iRacing offers its own telemetry interface to members through a forum thread, which exposes live data through shared memory. It is documented for third-party tools.
- Assetto Corsa Competizione
- Kunos publishes shared memory documentation for ACC on its official forum, and the game also ships a broadcasting interface.
These are the sources to read, not a summary of their legal terms. Links are at the bottom of the page.
What Horizon Labs does and does not do
The wording used by the Horizon Labs FAQ is the one to rely on:
- It does: read the telemetry each game sends out for dashboards and motion rigs, then draw a HUD from it in its own overlay window.
- It does not: inject into the game, read its memory, edit its files or change how it plays.
- Tune Architect calculates setups for Forza Horizon, but never writes them to the game. You type the values in yourself.
So the HUD is not a mod, a trainer or a cheat. That is a statement about what the software does. It is not a guarantee about how a publisher will treat it. Horizon Labs is an independent product, not endorsed by or affiliated with any of these publishers.
Where the risk really is
- Online and competitive play. A HUD that shows your own data is different from a tool that shows information you should not have, or that automates inputs. Anything that gives an unfair edge can be a problem, whatever route it uses.
- Rules of a series or league. Organised championships can set their own limits on overlays and extra software.
- Anti-cheat and overlays. Some anti-cheat systems react to programs that hook into a game. A separate overlay window that does not hook anything works differently, but a publisher’s rules can change.
- Terms change. A game update can change both the telemetry and the policy. Recheck before a competition.
What you can do
- Read the current terms and policy of the game you play, and any series rules.
- Use the telemetry settings the game offers, as in the FH6 Data Out guide, rather than workarounds.
- If you are unsure, ask the publisher’s support. They are the only source that counts.
The per-game steps are on Forza, F1, iRacing and Assetto Corsa pages.
Sources: Forza Horizon 6 Data Out Documentation, EA SPORTS F1 25 UDP specification, iRacing’s official telemetry interface (iRacing forums), ACC shared memory documentation (Kunos forum). Checked 2 November 2026.