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GMC Sierra 4.3 V6 200hp

1999 - 2007

200 Original HP
220 Modified HP
350 Original NM
370 Modified NM
Print Certificate
GMC Sierra

GMC Sierra 1999 - 2007 4.3 V6 200hp

Key Specifications

Generazione 1999 - 2007
Carburante Petrol
Power 200 → 220 hp +20 hp
Torque 350 → 370 Nm +20 Nm
Power
220 HP
+20 HP (+10%)
Original 200 HP
Stage 1 220 HP
Torque
370 NM
+20 NM (+5.7%)
Original 350 NM
Stage 1 370 NM

Power Graph

Original Power 200HP
Original Torque 350Nm
Power After Remap 220HP
Torque After Remap 370Nm

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Frequently Asked Questions - GMC Sierra

The cost of Stage 1 tuning for GMC Sierra 4.3 V6 200hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for GMC Sierra 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 200 to 220 HP (+10%) is within safe parameters.

With Stage 1 tuning, GMC Sierra goes from 200 HP to 220 HP (+20 HP) and from 350 Nm to 370 Nm (+20 Nm).

Stage 1 remapping takes it from 200 HP to 220 HP (+20 HP, +10%) and torque from 350 Nm to 370 Nm (+20 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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GMC
GMC Sierra 4.3 V6 200hp
+20 HP
220 HP