Questions? Call Us (303) 402-5142
Hours: M - F: 8 am - 5pmClosed Saturday and Sunday
Search
Menu
Cart [ ]
  • My Account
  • Create an Account
My Cars
  • Compare Products
Menu
Account

Black Friday Sales!

COBB, and Perrin, and Kartoby... Oh my! Sales on these brands, as well as Feal, IAG, Blouch, Voodoo13, and Nameless Performance. Select dates between now and 1/4/19.< Read more

Learn about our new site

We're THRILLED to present to you our new website! We've been working hard to provide you with the most user-friendly experience possible. Read more

Check out our new Blog

Everything from our Project Car, to the Flatirons Tuning Rally Team, to Performance and Tuning posts, we cover it all!

Read more

Flatirons Tuning Video

Did you know that we have our own Youtube channel? We cover everything including installation videos, product reviews, track day events, and much, much more!

Read more

Flatirons Tuning Video Gallery

Featured video

Ever since we made our first two videos about swapping an STI 6-Speed into either the GD WRX (2002 - 2007) or the GR WRX (2008 - 2014), there are a number of common question that we have received. Since we were helping Tasso Koch from OTC Racing put an STI 6-Speed transmission into his Rally car, we decided that this would be the perfect time to revisit some of these topics.

Home Page

Latest News From The Shop

FILTER

  1. Learn About Our New Site
    Learn About Our New Site

    Hello, and welcome to our new site!

    We've been hard-at-work over the past year upgradin

    Read more
  2. What is the difference between Horsepower and Torque?
    What is the difference between Horsepower and Torque?

    If you are thinking about improving your car’s performance by bolting on anything from an i

    Read more
  3. CU Rally Event
    CU Rally Event

    Check out the photos from today's CU Rally Event!

    The event was held at the UMC at the Un

    Read more
  4. Flatirons Tuning Subaru Track Day
    Flatirons Tuning Subaru Track Day
    Read more
  5. Pictures from SEMA 2003 (Part 1)
    Pictures from SEMA 2003 (Part 1)

    These are some pictures from when we attended SEMA in 2003. This year, we will have more pictures

    Read more
  6. Crash Pictures!
    Crash Pictures!

    Here are the photos you have all been asking for!

    (Click on the thumbnail to view lar

    Read more
Go To Blog

Copyright © 2018 Flatirons Tuning LLC. All rights reserved.