I help automotive enthusiasts utilize HP Tuners software to shift from frustrated reliance on inadequate tuning shops to confidently tuning their own or others' performance vehicles. This empowers them to trust in their own capabilities, ensure reliability, and potentially grow a respected client base in their community.

THIS IS the tuning course for you and will exceed all expectations and fill all tuning gaps needed to get the best possible outcome for your projects and hot rods!

GM Master Tuning Course
$399.00
One time

Get anytime access to our growing collection of tuning class material and content. Request videos for specific topics to pinpoint problems and resolve issues. This course contains all necessary GM LS/LT ECM and TCM content that will be tuned to tune and daily driver, weekend cruiser or wild record chasing track car to achieve a desired outcome that will be bragged about for years to come.


✓ Unlimited lifetime access for Continued Learning
✓ Additional Content ALWAYS being uploaded
✓ Over 10 Hours of Content and Increasing Each Month
✓ Unrivaled Technical Support and Communication

New Content Monthly

Lifetime Access

Continued Support

New Content Monthly Lifetime Access Continued Support

  • What You’ll Learn from the Ultimate Tuning course

Stop Paying for Tunes You Don't Trust

If you've ever left a tuning shop wondering what was actually changed, you're not alone. Learn to tune your own vehicle with confidence and know exactly what's happening inside your calibration.

Understand the "Why" Behind Every Change

Don't just copy tables from the internet. Learn the principles behind airflow, fuel, spark, torque management, and transmission tuning so every adjustment has a purpose.

Build Powerful, Reliable Tune Files

Build tunes that start easier, drive smoother, shift better, and make more power—all while protecting your engine and transmission.

Become the Tuner Everyone Calls

Whether your goal is to tune your own projects or build a side business, this course gives you the foundation to become the trusted tuner your friends and customers rely on.

Enjoy these Free Examples

Meet Your Instructor

Michael GIlmore:

Founder/Owner of GCT

I’m a lifelong educator with a passion for helping others reach their desired tuning outcomes. Whether you’re tuning your own car or a sea of customer cars, my proven methods are easy to understand and follow with results that are repeatable.

My goal with this course is to give you everything that has taken me years and a lot of time to acquire in a quick and easy to understand course.

You will have direct access to me for continued technical support to ensure that your tuning projects always turn out the way that you want.