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Challenger 6xx 660B - 8.4 - 303hp

All

303 Original HP
381 Modified HP
1 Original NM
1 Modified NM
Print Certificate
Challenger 6xx

Challenger 6xx All 660B - 8.4 - 303hp

Key Specifications

Generazione All
Carburante Diesel
Power 303 → 381 hp +78 hp
Torque 1 → 1 Nm +0 Nm
Power
381 HP
+78 HP (+25.7%)
Original 303 HP
Stage 1 381 HP
Torque
1 NM
+0 NM (+0%)
Original 1 NM
Stage 1 1 NM

Power Graph

Original Power 303HP
Original Torque 1Nm
Power After Remap 381HP
Torque After Remap 1Nm

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Frequently Asked Questions - Challenger 6xx

The cost of Stage 1 tuning for Challenger 6xx 660B - 8.4 - 303hp varies depending on the ECU and specific requirements. Contact us for a free personalized quote.

Stage 1 tuning for Challenger 6xx 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 303 to 381 HP (+26%) is within safe parameters.

With Stage 1 tuning, Challenger 6xx goes from 303 HP to 381 HP (+78 HP) and from 1 Nm to 1 Nm (+0 Nm).

Stage 1 remapping takes it from 303 HP to 381 HP (+78 HP, +26%) and torque from 1 Nm to 1 Nm (+0 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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Challenger
Challenger 6xx 660B - 8.4 - 303hp
+78 HP
381 HP