Flatirons Tuning

Flatirons Tuning Our goal at Flatirons Tuning is to provide excellent customer service, and to answer any questions that our customers might have.
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No matter what your project is, we can help you get your car up and running on the street, or at the track!

07/20/2026
Amazing that Rally Colorado is celebrating its 10th year!Every year it keeps getting better, and it is now a National Ev...
07/20/2026

Amazing that Rally Colorado is celebrating its 10th year!

Every year it keeps getting better, and it is now a National Event!

07/20/2026

A few clips from our 2026 Rally Colorado experience! Definitely a challenging race, but we wouldn’t have it any other way.

The conditions make spectating a challenge all its own!

Stay Tuned for the whole story!

07/17/2026

Race car vs. street car: The ultimate showdown!

One gets rebuilt in an hour, the other? Any contact can be Gut-wrenching.

We have all tracked our street car, but when it comes to wheel-to-wheel racing, a purpose built race car can have some big advantages!

Check out the full video at our Link in Bio!

Thanks for watching and Stay Tuned!

The path of the Automotive Enthusiast is one that is full of fun and excitement, but there are many traps and challenges...
07/17/2026

The path of the Automotive Enthusiast is one that is full of fun and excitement, but there are many traps and challenges that await you along the road. Those of us that have been building, tracking, or racing cars for years will tell you that those traps and challenges are how you learn and that finding your way through these trials is as much a part of being an enthusiast as having a perfect trouble-free day at the track.

There is an argument out there that the less you know about what could go wrong, or how challenging a task may be, the easier it is to get excited about it, and the more likely you are to jump in head first to the challenge.

Ignorance is Bliss as they say…

I was having a conversation with Dewey about some of the recent issues that we ran into with our Pikes Peak car, specifically about how a very simple and cheap part caused a somewhat significant issue on our run up the mountain this year, and how frustrating it can be to work through these problems.

He said that there has to be something like the Dunning-Kruger Effect that applies to Race Cars that related to what we were working through now, and which is something that most all of us who have frequently tracked our cars, or worked on or around a race team have run into.

It was immediately clear that this was a broader conversation that we needed to have, and we decided to bring in Tony from Turn in Concepts to help us work through all of this, and hopefully gain a clearer perspective on why we push through all of this.

I think that there is likely something in this conversation for anyone from a true novice that is just starting to think of taking their car to the track for the first time, through to someone like us that has been working around race cars for a while now, with full knowledge of what it takes to properly prep a car, and all that could go wrong when you are pushing a car at speed.

I hope that you enjoy the conversation and Stay Tuned!

We are headed to Rally Colorado this weekend! This means we’ll be closing early today, July 17th at 12 noon. We will be ...
07/17/2026

We are headed to Rally Colorado this weekend! This means we’ll be closing early today, July 17th at 12 noon. We will be back in the shop on Monday, please reach out to our email or send a message in the meantime!

Flatirons Subaru
Trevor Harley
Rally Colorado

07/16/2026

Subaru's STI is getting serious track time!

Think this beaSTI will be the best one yet?

But if they return to the WRC, will it help or hurt the development of their cars going forward on tarmac?

Drop your guesses in the comments below!

Check out the full video at our Link in Bio!

Stay Tuned!
jp

tecnica.international

07/16/2026

Subaru might just make a WRC comeback in 2027!

Turns out, those pesky old engine rules and no boxer engines were the real villains.

Now with simpler regulations, could we see them back on the rally stage?

Which chassis do you want to see? Impreza? BRZ?


jp

So far in 2026, Subaru has shown us that they are working on a number of different concept cars, and with hints of the S...
07/15/2026

So far in 2026, Subaru has shown us that they are working on a number of different concept cars, and with hints of the STI returning, as well as an All Wheel Drive BRZ (Boxer Rally spec Z), there is a lot of discussion of Subaru returning to the World Rally Championship.

So with that in mind, we wanted to take a look at what it would look like if Subaru returned to the WRC in 2027.

What has changed to make it more tempting to Subaru to return to the WRC, and how could the benefit from it?

What platform would Subaru use to compete in the WRC? Would it be an STI, or a BRZ?

Could there be any downsides to them returning to the WRC?

We do our best to answer these questions with the information that we have so far.

Thanks for watching and Stay Tuned!

We’re working on a little something at the shop.  Any guesses what it is?
07/14/2026

We’re working on a little something at the shop. Any guesses what it is?

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1630 63rd Street STE #3
Boulder, CO
80301

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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