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Buick Rainier 5.3 V8 294hp

2004 - 2007

294 Original HP
310 Modified HP
441 Original NM
465 Modified NM
Print Certificate
Buick Rainier

Buick Rainier 2004 - 2007 5.3 V8 294hp

Key Specifications

Generazione 2004 - 2007
Carburante Petrol
Power 294 → 310 hp +16 hp
Torque 441 → 465 Nm +24 Nm
Power
310 HP
+16 HP (+5.4%)
Original 294 HP
Stage 1 310 HP
Torque
465 NM
+24 NM (+5.4%)
Original 441 NM
Stage 1 465 NM

Power Graph

Original Power 294HP
Original Torque 441Nm
Power After Remap 310HP
Torque After Remap 465Nm

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Frequently Asked Questions - Buick Rainier

The cost of Stage 1 tuning for Buick Rainier 5.3 V8 294hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Buick Rainier 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 294 to 310 HP (+5%) is within safe parameters.

With Stage 1 tuning, Buick Rainier goes from 294 HP to 310 HP (+16 HP) and from 441 Nm to 465 Nm (+24 Nm).

Stage 1 remapping takes it from 294 HP to 310 HP (+16 HP, +5%) and torque from 441 Nm to 465 Nm (+24 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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Buick
Buick Rainier 5.3 V8 294hp
+16 HP
310 HP