Challenger MT All 685E 8.4 - 370hp

Real standard and upgraded performance figures for the 685E 8.4 - 370hp engine in the Challenger MT All.

Below: measured output for the 685E 8.4 - 370hp in the Challenger MT All, standard vs. remapped, in both horsepower and torque.

Horsepower (HP)Torque (Nm)
Standard3701
Stage 13701
Stage 23701
Make
Challenger
Model
MT
Generation
All
Engine
685E 8.4 - 370hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the Challenger MT All 685E 8.4 - 370hp?

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 685E 8.4 - 370hp make after tuning?

Standard output is 370 HP / 1 Nm; Stage 1 on this engine typically reaches 370 HP / 1 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Challenger MT All 685E 8.4 - 370hp 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 685E 8.4 - 370hp 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.