GMC Sierra 2008 - 2013 Engines
The GMC Sierra 2008 - 2013 was offered with 6 engines we cover — pick the exact one from your logbook or ECU sticker to get accurate figures, not a range-wide average.
- 4.3 V6 195hp · petrol
- 4.8 V8 302hp · petrol
- 5.3 V8 326hp · petrol
- 6.0 V8 360hp · petrol
- 6.2 V8 403hp · petrol
- 6.6 Duramax 365hp · diesel
The GMC Sierra 2008 - 2013 engine lineup covers 6 options in our catalogue. Pick the one that matches your vehicle to continue to its dyno-tested Stage 1 (and, where available, Stage 2) figures.
Frequently asked questions
Which tuning stages does the GMC Sierra 2008 - 2013 support?
It depends on the specific engine — pick yours below and its performance page will show exactly which stages (Stage 1, and Stage 2 where supported) are available.
How fast can a GMC Sierra 2008 - 2013 file be turned around?
Typically a few hours from upload, tracked live in the member panel once your request is open.
Is ECU remapping safe on the GMC Sierra 2008 - 2013?
Yes, when done within the limits set for that specific engine — which is exactly what our stage options are calibrated to. Every file is worked by someone experienced with that engine family.
How do I identify my exact GMC Sierra 2008 - 2013 engine?
Check the ECU sticker under the hood, or the engine code on your vehicle documents — either one will match against the list below.