Dodge Challenger 2008 -> SRT8 6.1 V8 425hp

Real standard and upgraded performance figures for the SRT8 6.1 V8 425hp engine in the Dodge Challenger 2008 ->.

Below: measured output for the SRT8 6.1 V8 425hp in the Dodge Challenger 2008 ->, standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard425570
Stage 1445590
Stage 2455600
Make
Dodge
Model
Challenger
Generation
2008 ->
Engine
SRT8 6.1 V8 425hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Dodge Challenger 2008 -> SRT8 6.1 V8 425hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the SRT8 6.1 V8 425hp make after tuning?

Standard output is 425 HP / 570 Nm; Stage 1 on this engine typically reaches 445 HP / 590 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Dodge Challenger 2008 -> SRT8 6.1 V8 425hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the SRT8 6.1 V8 425hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.