GMC Sierra Denali 3500 - Gen 4 6.6L L5P Duramax

A Dyno Tune requires you to bring your vehicle to our workshop in Jindera, NSW.

• This is not a mail order service — your vehicle must be driven or transported to us.
• After ordering we will contact you to arrange a booking date and time.
• The tune is built live on our in-house dynamometer on the day.

Not local to Jindera? Our Mail Order options let you get tuned without a workshop visit.

This service is for existing Border Tuning customers who have previously had their ECU tuned by us and would like an updated tune.

• Your name will be verified against our customer records.
• The ECU you send in must have been previously tuned by Border Tuning.
• If we cannot verify this, you will be required to pay the difference to the full service price before your ECU is returned.

If you’re not sure whether you qualify, get in touch before ordering.

ⓘ Mail-Order & Powergate Tuning

Mail-order and Powergate tuning covers Stage 1 and Stage 2 only. We can’t tune for high-flow injectors by mail order — vehicles running high-flow injectors must be dyno tuned. Running high-flow injectors? Select the Dyno Tune service instead.

ⓘ Emissions — Please Read

Disabling emissions systems such as the DPF or AdBlue/SCR may be illegal for road use in your area. It is your responsibility to check your local laws before purchasing.