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ECU remapping GMC

7 models · 35 engines — up to +55 hp

GMC covers a wide range of turbocharged petrol and diesel engines whose factory maps leave room for a clean, measured optimisation. Across our catalogue, GMC gains are mainly felt in low-end torque and everyday flexibility, with ethanol (E85) conversion available on eligible direct-injection petrol engines.

35
engines
+55 hp
up to
+116 Nm
up to
€490
Stage 1 from

Find your vehicle directly

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

Most popular for Stage 1

Sierra 13 engines +32 hp on average from €690→ Yukon 6 engines +22 hp on average from €690→ Acadia 5 engines +20 hp on average from €590→ Terrain 4 engines +30 hp on average from €490→ Canyon 4 engines +12 hp on average from €490→ Savana 2 engines +10 hp on average from €690→

E85 conversion — compatible models

Several GMC petrol engines can switch to E85 ethanol: a tank up to half the price and a lighter carbon footprint, at equal performance.

Sierra 13 engines 8 E85-compatible engines from €690→ Yukon 6 engines 4 E85-compatible engines from €690→ Acadia 5 engines 4 E85-compatible engines from €549→ Canyon 4 engines 3 E85-compatible engines from €549→ Terrain 4 engines 3 E85-compatible engines from €549→ Savana 2 engines 2 E85-compatible engines from €549→

All models GMC

Acadia 5 Canyon 4 Envoy 1 Savana 2 Sierra 13 Terrain 4 Yukon 6

FAQ

Is GMC remapping safe for the engine?
Our GMC Stage 1 maps stay within the manufacturer's safety margins. We work only on healthy mechanicals and keep temperature, boost and injection within tolerances.
How much does a GMC remap cost?
Stage 1 for GMC starts at €490, depending on the engine. Each model page shows the exact price per engine.
Can my GMC run on E85 ethanol?
Most direct-injection turbo petrol GMC engines can be converted to E85 with a dedicated map: up to 50% savings at the pump and a lower carbon footprint, without giving up any performance.
Will remapping void my warranty?
A remap modifies factory calibration. We advise you transparently on the implications for your specific GMC before any work.
Where can I get my GMC 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