Guide

Forza Horizon 6 Tuning Calculator and Tune Share Codes

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How do you use a tune share code?

A share code is nine digits in three groups (for example 123 456 789). Each code belongs to one tune for one specific car, and it works across platforms because tunes are user-made content. Installing a code applies the full build, so you do not need to fit parts yourself.

  1. Go to a festival site, your player house or your garage.
  2. Select the exact car the tune is for, open the Cars tab, choose Upgrades & Tuning, then Find Tuning Setups.
  3. Open Search at the bottom of the screen (View button on Xbox, Backspace on keyboard).
  4. Enter the nine-digit code, search, then download and install the tune.

How do you share your own tune?

Forza.net's starting guide notes that tunes and liveries from other players can be downloaded, and Car Meets let you download a tune straight from a car parked next to you.

  1. Open your Garage and go to Upgrades & Tuning.
  2. Choose Setup Manager.
  3. Select the tune and press Share. The game generates your nine-digit code.

How does a tuning calculator work?

ForzaTune Pro is a suspension and gearing calculator that has been updated for Forza Horizon 6, with an FH6 car database and presets for street, touge, drift and time attack on Android. Free alternatives work the same way, including Dialed Racing, the Forza Horizon Hub calculator, EasyTune and the F.A.T.T.Y tool on Nexus Mods.

  1. Fit the adjustable parts first: you can only tune what you have upgraded. Aero and brake upgrades are optional.
  2. Read the car's weight, front weight percentage, PI and drivetrain from the Upgrades & Tuning screen; weight updates as you add weight-reduction parts.
  3. Enter them in the calculator, in the same units the game uses (lb or kg).
  4. Copy the results into the game's tuning menu.
  5. Adjust balance and stiffness to taste; ForzaTune updates related values together.
  6. Optional: use the gearing calculator, which builds ratios around tyre size, gear count and target speed.

How should you test a tune?

Treat any calculator output as a starting point. Dialed Racing's advice is to drive a clean lap and, if something feels off, change that one value by about 10% in the recommended direction and try again. Testing on the same corner each time makes the change easy to feel.

Where do you find a tune for a specific car?

Searches for a GR GT tune, a Miata Forza Edition tune or a code for a specific race are best answered by community libraries, because codes change as players improve them. FH6 Tunes lists community-voted builds for more than 600 cars, filterable by PI class, discipline and drivetrain; Forza Horizon Hub and Codmunity keep similar libraries. No single code is officially the best, so this page does not list codes.

For which car to tune in each class, use the leaderboard-based picks in the best car guide; for drag and drift setups, see the best drag cars and drift pages.

Do updates break tunes?

They can. A code keeps working after a handling change, but the car may feel different, which is why tuners add notes and update codes. Series 6 also added more than 50 engine swaps, including a racing V12 for cars such as the 2010 Pagani Zonda Cinque Roadster, which opens new builds and makes older tunes for those cars worth revisiting. The update page logs changes.

Sources & verification

FH6 Field Guide editors

  1. ForzaTune Pro — tuning calculator for Forza Horizon 6 and earlierStore / platform · 2026-10-11
  2. FH6 Tunes — Share codes guideMedia coverage · 2026-10-11
  3. Forza.net — First Drive: A Forza Horizon 6 Starting GuideOfficial · 2026-10-11
  4. Forza Support — FH6 Release Notes: October 5, 2026Official · 2026-10-11
  5. Forza.guide — Forza Horizon 6 meta cars from Rivals leaderboardsMedia coverage · 2026-10-11
  6. Dialed Racing — Forza Horizon 6 tune calculatorStore / platform · 2026-10-11