MAIRA (Marvin’s Awesome iRacing App) is a high-performance companion for sim racers who want more immersion, more insight, and more control—without the usual spaghetti of plugins and workarounds. Built from the ground up using real-time iRacing telemetry, MAIRA drives advanced features like highly tunable force-feedback, pedal haptics, and wind simulation that react instantly to what the car is actually doing. Every subsystem is engineered for precision, low latency, and stability, turning raw data into something you can feel, see, and trust. In short: MAIRA doesn’t just show you the race—it helps your rig experience it… preferably at hurricane levels of awesome.

Donations are completely optional. I will never charge any fees for using MAIRA. That said, donations make me warm and fuzzy and is a great motivator for me to keep working on MAIRA. A huge thank you to everybody who have donated already! ❤️

Version 2.0.459.1119

This release

  • New shift RPM vibrate effect that pulses the racing wheel when it’s time to shift up!
  • The commentary page now shows ElevenLabs voice synthesis errors (for example, selecting a paid voice on a free subscription) instead of failing silently.
  • The G Tensioner seat-of-pants auto-tune now settles faster by draining its peak 10× more quickly.
  • The balance triangle point labels are now shown in MAIRA orange.
  • Fixed a threading issue when repositioning overlay windows.
  • Fixed spurious one-lap-to-green and blue flag signals from the simulator at the end of a session.
  • Fixed localization display errors on the commentary and app manager pages.

Previous releases

Version 2.0.458.1162

  • Major update to the G Tensioner.
    • Renamed the Seat Belt Tensioner to the G Tensioner.
    • New Auto-Tune mode learns the G forces your car actually produces and automatically sets the surge, sway, and heave max G force and the seat-of-pants scale for you.
    • New Balance triangle lets you weight the belt range toward surge, sway, or heave by dragging a dot (hold to reset to center).
  • Overlays can now remember their position and scale per car.
  • Improved AdminBoxx firmware updates with a progress percentage and better protection against boot-up freezes.
  • Renamed the Wind feature to Typhoon Wind.
  • Per-run log files are now saved to a Logs subfolder and kept for 7 days.
  • Normalized UI labels to consistent sentence case.
  • Added missing help topics to the overlays page.
  • Fixed stale steering device fault messages when iRacing force feedback was already enabled on connect.
  • Fixed the G Tensioner minimum/maximum G readout sometimes staying stuck on "—".
  • Updated translations.

Version 2.0.452.990

  • The Commentary on/off toggle can now be mapped to a button.
  • The Pedals page now shows the live status of each pedal effect (idle, active, or suppressed).
  • Added an "Open documents folder" shortcut to the app settings.
  • Added an option to automatically delete old installer files.
  • The app and its installer are now code-signed, so Windows no longer shows SmartScreen warnings when you launch or update it.
  • Update checks now respect your Windows notification state — the update prompt no longer pops up while you’re in a full-screen session, away, or during quiet hours — and the app remembers when it last checked.
  • Fixed a threading issue on the Commentary page that could cause instability.

Version 2.0.446.1334

  • Spotter commentary can now be configured per session type.
    • Car proximity calls can be enabled or disabled separately for Practice, Qualifying, and Race.
    • Flag calls can be enabled or disabled separately for Practice, Qualifying, and Race.
  • Added an option to disable the automatic hourly check for updates (the check at startup still runs).
  • Updated translations.

Version 2.0.445.1216

  • Fixed a potential crash when calculating the auto force-feedback target for cars with a very low maximum wheel force.
  • Fixed the shift RPM vibration effect firing while in top gear or when no forward gears are defined.

What would you like to do today?

Become a MAIRA expert. The Documentation is where you’ll find everything you need to get up to speed fast—step-by-step guides, clear tutorials, and a no-nonsense FAQ that answers the questions you will have five minutes before a race. Whether you’re doing a first install, fine-tuning advanced features, or troubleshooting something that feels one click away from gremlins, this is your racing manual. No fluff, no mystery—just practical help to keep MAIRA running smooth, fast, and race-ready.

Feel the speed for real. The MAIRA Typhoon Wind Sim converts simulator telemetry into powerful, real-time airflow, creating a physical sensation of speed that screens, force feedback, and bass shakers alone can’t provide. Its compact dual-fan design mounts directly beside your wheelbase for strong, immersive airflow without the tubes, ducts, and clutter found in traditional wind simulators. Fully assembled and ready to use, Typhoon gets you from box to track in minutes with support for iRacing through MAIRA and additional racing and flight simulators through SimHub.

Feel the forces for real. The MAIRA Seat Belt Tensioner is all about turning acceleration telemetry into body-load sensation. This DIY belt feedback system blends surge, sway, and heave into independent left and right shoulder tension, tightening and relaxing the belts to mirror braking, acceleration, cornering, and vertical impacts. Unlike motion rigs that shine with quick jolts, the SBT can hold sustained belt pressure, giving you a clearer feel for ongoing load and making the car easier to read without needing a full motion rig. Built with off-the-shelf components, 3D-printed parts, and clear step-by-step assembly guidance, it’s designed to be builder-friendly, easy to mount, and seriously immersive once you’re strapped in. This also works for all games supported by SimHub – not just iRacing.

This section is where the helmet comes off and the story begins. Learn about Marvin—the sim racer, tinkerer, and slightly obsessive engineer behind MAIRA—and how years of racing, game development, and “there has to be a better way” moments turned into the app you’re using today. Here you’ll find background on the ideas that shaped MAIRA, a look inside Marvin’s personal sim rig and hardware choices, and the philosophy that drives every feature. It’s part origin story, part rig tour, and part friendly reminder that MAIRA was built by a sim racer, for sim racers.

This is where the community takes the wheel. The Media section brings together videos from sim racers, creators, and reviewers around the world who have spent time with MAIRA and shared their experiences. From deep-dive tutorials and force-feedback breakdowns to first impressions and long-term usage stories, this is the place to see how MAIRA performs outside the lab and out on the virtual track. If you’re curious how other drivers use it, tune it, or push it to its limits, this is the highlight reel — real voices, real rigs, and real opinions, all in one place.

Looking for Classic MAIRA? You can find version 1.13 here –

https://herboldracing.com/marvins-awesome-iracing-app-maira/