GMC Envoy Stage 1
3 engines – 270–300 hp
3
engines
+22 hp
Max gain
+7%
Avg. gain
| Engine | Fuel | Stock (hp) | Stage 1 (hp) | Gain |
|---|---|---|---|---|
| 5.3 V8 300hp | Petrol | 300 | 322 | +22 (7%) |
| 4.2i - 270hp | Petrol | 270 | 291 | +21 (8%) |
| 5.3 V8 290hp | Petrol | 290 | 311 | +21 (7%) |
FAQ
Is Stage 1 safe for the engine?+
Yes, Stage 1 is a mild optimization within factory safety margins. We use dealer-level equipment and verify results on a dyno.
How long does it take?+
Usually 2–4 hours, including diagnostics, remapping, and a control measurement on our dynamometer.
Does it affect fuel consumption?+
Stage 1 can reduce consumption (better torque curve) or slightly increase it under aggressive driving. On average, consumption stays the same.