GMC Sierra (1999 - 2007)
Engine & Gearbox ECU & TCU Remapping


We offer a range of ECU tuning and remap options for the GMC Sierra. Below is a list of GMC Sierra engines categorised by fuel type that we support for remap. Click the GMC Sierra powertrain for further information. If you cannot find your vehicle in the list, contact us for more information.

GMC Sierra (1999 - 2007) Petrol Engine & Gearbox Remaps

4.3 V6 200hp4.8 V8 295hp5.3 V8 295hp6.0 V8 360hp

GMC Sierra (1999 - 2007) Diesel Engine & Gearbox Remaps

6.6 Duramax 365hp

Can't find your car?

Whilst we do our best to keep this list up to date, we're adding newly supported vehicles all the time. If you cannot find your what you're looking for, drop us an email!