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!

There has been a lot that has gone on since we last had this group together, and we wanted to cover all of those topics ...
06/18/2026

There has been a lot that has gone on since we last had this group together, and we wanted to cover all of those topics in this episode.

Dewey was just running his car Boogie at Gridlife Midwest Fest, and we start off talking about how that all went.

Subaru has now announced that they are working 3 new Manual Transmission cars that should be coming out by the end of next year, the most exciting of which is what they are saying will be the production version of the STI Performance B Concept car.

But it sounds like they may also be making the STI Transmission (TY85) available in at least some WRX models???

What does this all mean, and what will we see here in the US market? We give you our thoughts.

Finally, Tanner has picked up a 2005 STI, that is very close to stock, and it is basically a Time Capsule to 2005 (It has been tuned on a V1 AccessPort for the last 19 years).

Thanks for watching and Stay Tuned!

Overtakeusa
IAG Performance

There has been a lot that has gone on since we last had this group together, and we wanted to cover all of those topics in this episode.

06/17/2026

C-c-c-combo move!

06/17/2026

The Flatirons Tuning Pikes Peak WRX STI is up on the Mountain getting ready for the Pikes Peak Hill Climb this Sunday.

The first couple of days are going well, and we are finding time with the car as the week progresses.

Stay Tuned for the race on Sunday the 21st, and fill you in on all that has been going on behind the scenes soon.

Thanks for your support!






Very glad that we could help to get you back on the Mountain!
06/16/2026

Very glad that we could help to get you back on the Mountain!

06/16/2026

One of the most important things to look at if you want to know if your engine is running well, that your PCV System, Air Oil Separator, or Catch Can Setup is working well, and the overall health of your engine is good, is Crankcase Pressure.

We measure this on a number of our cars, but we still get a lot of questions about how to measure this and what it takes to install a crankcase pressure gauge.

For this video, we wanted to take a detailed look at Jon's car, which has the simplest setup to see what is going on with your crankcase pressure.

And the good news is that you might have most all of what you need all ready!

Thanks for watching and Stay Tuned!

One of the most important things to look at if you want to know if your engine is running well, that your PCV System, Ai...
06/16/2026

One of the most important things to look at if you want to know if your engine is running well, that your PCV System, Air Oil Separator, or Catch Can Setup is working well, and the overall health of your engine is good, is Crankcase Pressure.

We measure this on a number of our cars, but we still get a lot of questions about how to measure this and what it takes to install a crankcase pressure gauge.

For this video, we wanted to take a detailed look at Jon's car, which has the simplest setup to see what is going on with your crankcase pressure.

And the good news is that you might have most all of what you need all ready!

Thanks for watching and Stay Tuned!

One of the most important things to look at if you want to know if your engine is running well, that your PCV System, Air Oil Separator, or Catch Can Setup is working well, and the overall health of y

06/16/2026
The 2026 Pikes Peak Int'l Hill Climb is here!  We made it through tech today, and we qualify tomorrow morning, for our f...
06/15/2026

The 2026 Pikes Peak Int'l Hill Climb is here! We made it through tech today, and we qualify tomorrow morning, for our first official day on the mountain.

Stay Tuned for updates through the week as we have them, and make sure to tune in for the event this Sunday!

Thanks to everyone that helped us get to this point this year!

Roger Clark Motorsport
Turn In Concepts
Rallispec Ltd
Verus Engineering
Feal Suspension
Weds Wheels [Official North America]]
Boost’d Scoops Motorsports

06/15/2026
06/14/2026

Ever wonder what your Driver Controlled Center Differential is doing?

It's all about the torque-biasing differential stuck between two clutch packs!

If you want to know more after this, check out our video on How the DCCD actually works!

Stay Tuned!

Address

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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