Fuel Tech GT6 Tune Server

Race Day Doesn’t Wait. Neither Do We.

Built for racers who need answers now, not next week. Upload your tune, and our system verifies it and delivers your ECU-matched file instantly — day or night, no back-and-forth, no waiting on an email.

When the green flag’s coming up, every minute counts. This is real-time support, built for real-time racing.

How It Works

1. Tell us who you are — name, email, phone, and address.
2. Upload one of your Guhl tunes — any tune file we’ve previously sent you. This confirms you’re a Guhl customer.
3. Pick what you need — move that tune to a new ECU, or choose a different tune from our library.
4. Tell us the ECU — same one as your uploaded file, or enter a different ECU’s serial number.
5. Hit Request Tune — your file’s ready to download in seconds.
Your Information

Your Existing Tune

We'll verify it automatically -- this proves you're an existing customer.

What would you like?