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Hummer H1 6.6 V8 305hp

-> 2006

305 Original HP
325 Modified HP
820 Original NM
850 Modified NM
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Hummer H1

Hummer H1 -> 2006 6.6 V8 305hp

Key Specifications

Generazione -> 2006
Carburante Diesel
Power 305 → 325 hp +20 hp
Torque 820 → 850 Nm +30 Nm
Power
325 HP
+20 HP (+6.6%)
Original 305 HP
Stage 1 325 HP
Torque
850 NM
+30 NM (+3.7%)
Original 820 NM
Stage 1 850 NM

Power Graph

Original Power 305HP
Original Torque 820Nm
Power After Remap 325HP
Torque After Remap 850Nm

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Frequently Asked Questions - Hummer H1

The cost of Stage 1 tuning for Hummer H1 6.6 V8 305hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Hummer H1 typically takes 1-2 hours of work. Time may vary depending on the ECU type.

Yes, our Stage 1 tunes are developed respecting the engine's safety margins. The power increase from 305 to 325 HP (+7%) is within safe parameters.

With Stage 1 tuning, Hummer H1 goes from 305 HP to 325 HP (+20 HP) and from 820 Nm to 850 Nm (+30 Nm).

Stage 1 remapping takes it from 305 HP to 325 HP (+20 HP, +7%) and torque from 820 Nm to 850 Nm (+30 Nm). These figures refer to the standard engine, with no hardware modifications.

A remap changes the factory calibration, so on a vehicle still under manufacturer warranty it may affect coverage on powertrain components. Performance tuning keeps all emission systems working; deactivating emission devices such as DPF, EGR or AdBlue is not road-legal in the EU and UK and is intended for off-road, motorsport or export use only.

With a normal driving style consumption usually stays the same or drops slightly: the extra torque at low rpm means less throttle for the same speed. Consumption goes up only if you actually use the additional power.

Yes. The original file is read and stored before any modification, so the vehicle can be returned to the factory calibration at any time.

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Hummer
Hummer H1 6.6 V8 305hp
+20 HP
325 HP