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Remapping GMC Sierra

13 engines · 4 generations — up to +55 hp

Compare every GMC Sierra engine we remap: stock figures, Stage 1 gains and prices, plus ethanol (E85) options.

13
engines
+55 hp
up to
+116 Nm
up to
€690
Stage 1 from

Find your vehicle directly

Search for your vehicle to see remapping options, expected gains and our prices.

GMC Sierra — engines
EngineStockAfter Stage 1GainE85 ethanolFrom
2007
6.6 Duramax 397ch 397 hp 450 hp +53 hp €900
2014
4.3i V6 285ch 285 hp 295 hp +10 hp Ethanol conversion available €690
5.3i V8 355ch 355 hp 365 hp +10 hp Ethanol conversion available €690
6.6 Duramax 397ch 397 hp 450 hp +53 hp €900
6.2L V8 426ch 426 hp 436 hp +10 hp Ethanol conversion available €790
2017
3.0 Duramax 277ch 277 hp 310 hp +33 hp €690
2.7 Ecoboost 310ch 310 hp 340 hp +30 hp Ethanol conversion available €690
2.7 Ecoboost 315ch 315 hp 350 hp +35 hp Ethanol conversion available €690
6.2 V8 420ch 420 hp 445 hp +25 hp Ethanol conversion available €690
2019
3.0 Duramax 281ch 281 hp 314 hp +33 hp €690
5.3i V8 EcoTec3 360ch 360 hp — — Ethanol conversion available Unavailable
6.2L V8 EcoTec3 426ch 426 hp — — Ethanol conversion available Unavailable
6.6 Duramax 451ch★ 451 hp 506 hp +55 hp €900

Top 3 engines

Best petrol gain 2.7 Ecoboost 315ch 315 hp → 350 hp · +35 hp · €690 View
Best diesel gain 6.6 Duramax 451ch 451 hp → 506 hp · +55 hp · €900 View
Best gain / price ratio 6.6 Duramax 451ch 451 hp → 506 hp · +55 hp · €900 View

Switch to ethanol (E85)

8 GMC Sierra engines are compatible with E85 conversion in our catalogue. Ethanol saves up to 50% at the pump and cuts your carbon footprint — with no compromise on performance. Good for your wallet and for the planet.

Find your vehicle
8
E85-compatible engines

Other models GMC

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FAQ

What gains can I expect on a GMC Sierra?
Gains depend on the exact engine: the comparison table above shows stock vs Stage 1 power and torque for each GMC Sierra version.
How much is a GMC Sierra Stage 1?
From €690. Pick your engine for the exact price.
Is E85 conversion available on the GMC Sierra?
Yes, 8 GMC Sierra engines are E85-compatible in our catalogue. Ethanol can halve your fuel bill and shrink your carbon footprint, with performance left intact.
Where can I get my GMC Sierra remapped?
Our workshop is in Lathuile (74210), at the southern end of Lake Annecy, by appointment, Monday to Friday 9am–6pm and Saturday 8am–12pm. We can also come to your home within about 1h30 of Annecy (power socket and internet connection required; travel costs may apply). Find Alpes Reprog on Google Maps