Flatirons Tuning
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Our goal at Flatirons Tuning is to provide excellent customer service, and to answer any questions that our customers might have.
Remember the '04 STI?
That legendary performance set the brand apart!
If they bring it back, it HAS to keep that same spirit.
But wait, EVs are changing the game...
Can one last STI make it back to the top of the segment?
Check out the full conversation in our Link in Bio!
Thanks for watching and Stay Tuned!
STI vs WRX: Is the 6-speed really that much better?
Some say yes, but are Tires and Suspension King.
Who's right?
Let us know what you think in the comments!
Thanks for watching and Stay Tuned!
Our Pikes Peak STI is now reliable so we can start adjusting the settings.
But how much of a difference can little changes make?
This car is now 5-6 seconds faster per lap!
Scott can't believe how good it feels. Think we tweaked the engine? Nope, just the DCCD mapping and Delta ABS!
Ready to take on Pikes Peak!
05/29/2026
Your SubaNews for the 4th week of May 2026
You can now find Flatirons Tuning Liveries in Forza Horizon 6
With just 3 weeks to go until the 2026 Pikes Peak Hill Climb, how did our second track test go?
How much can you improve a cars handling with a different DCCD map? It turns out, more than we thought.
We talk about all this in this weeks episode of the SubaNews!
Thanks for watching and Thanks for your support!
Stay Tuned!
Forza Horizon 6 Liveries and 3 weeks to the Pikes Peak Hill Climb Your SubaNews for the 4th week of May 2026 You can now find Flatirons Tuning Liveries in Forza Horizon 6
Click here to claim your Sponsored Listing.
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Website
Address
Boulder, CO
80301
Opening Hours
| Monday | 9am - 5pm |
| Tuesday | 9am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |
