How to Tune a 15 STI in Forza

Learn how to tune a 15 STI in forza horizon 4 for the best possible performance.

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In the world of Forza, there are a few things that are considered essential for any build. A well-tuned car is one of those things. Many people think that tune is something that only the pros can do well, but that’s not the case. With a little practice, anyone can learn to tune their cars like a pro.

Here are a few tips to get you started:

1. Understand the different aspects of tune.
2. Start with a base tune.
3. Make small adjustments and test them before making more changes.
4. Pay attention to your car’s behavior and how it changes with each adjustment.
5. Don’t be afraid to experiment!

With these tips in mind, you’re ready to start tuning your car like a pro!

What You’ll Need

Before you can start tunning your car, you’ll need the following:
-Tuning Menu
-Car Setup
-Track Map

With those three things in mind, you’re ready to start tunning your car for the best possible performance.

Preparing Your STI

In order to tune your STI in Forza, you’ll need to take the following steps:

1. Prep your STI by making sure it’s in good condition and that all suspension and tire settings are correct.

2. Choose the track you’ll be running on and select the appropriate drop-down menu in Forza.

3. Enter your STI’s weight, power, and grip values into Forza’s tuning calculator.

4. Make adjustments to your STI’s suspension, tires, and body according to the results of the tuning calculator.

5. Save your tuning setup and race!

Tuning Your STI

There are a few things you need to do in order to get the most out of your STI in Forza.

First, you need to make sure that your car is properly aligned. This can be done by visiting a local garage or by using the Forza Tune app.

Once your car is aligned, you need to adjust your tire pressure. The ideal pressure for your STI will depend on the track conditions and your driving style.

Finally, you need to fine-tune your suspension. This includes adjusting the ride height, spring rate, damping, and anti-roll bars.

Testing Your STI

To ensure that your subaru impreza wrx sti is running properly before heading out on the track, it’s important to do a few basic tests. In this article, we’ll go over how to tune a 15 STI in Forza so that you can maximize your car’s performance.

First, you’ll need to set your car up on a test track. Forza includes several pre-made tracks specifically for testing cars, so make sure to select one of these when starting your session. Once you’re on the track, it’s time to start making adjustments to your car.

The first thing you’ll want to do is adjust the bike’s suspension. You can do this by going into the garage and selecting “Edit Suspension Geometry.” From here, you’ll be able to adjust the height of the front and rear of the car, as well as the camber and toe angles.

Next, you’ll want to adjust the bike’s tire pressure. The ideal pressure will vary depending on the track conditions and your driving style, but you can experiment with different pressures to see what works best for you. To adjust the pressure, go into the garage and select “Edit Tire Pressures.”

Finally, you’ll want to tweak the car’s gearing. The goal here is to find a balance between acceleration and top speed. You can experiment with different gear ratios to see what works best for you. To change the gearing, go into the garage and select “Edit Gear Ratios.”

After making these adjustments, it’s time to take your Subaru Impreza WRX STI out for a spin! Make sure to pay attention to how the car feels and drives so that you can make further adjustments as needed. With a little trial and error, you should be able to get your car tuned perfectly for any race or event.


We hope this guide has been helpful in teaching you how to tune a 15 STI in Forza. As always, happy racing!

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