GMC diesels

GMC ECU Remap 2 variants · Sydney dyno · Australia-wide

We remap 2 GMC diesel variants on our Sydney Mainline dyno. Every tune is developed against the factory calibration of the specific car in front of us — not a generic file shared across years and markets. Australia-wide service available via posted ECU.

2 variants

GMC diesels we tune

2+ diesel vehicles available

Try these:

All GMC makes we remap

Sierra 2500HD 6.6L 223 kW

2004–2023

Average gains: +72hp / +197Nm
Sierra Denali 6.6L 296 kW

2017–2020

Average gains: +95hp / +290Nm

Book your GMC remap

Same-day service at our Sydney workshop. Outside NSW? Ask about our posted-ECU option.

Call 02 8880 9181 Chat on Messenger