Challenger MT All 645 - 275hp

Real standard and upgraded performance figures for the 645 - 275hp engine in the Challenger MT All.

The Challenger MT All 645 - 275hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard2751185
Stage 13301430
Stage 23571552
Make
Challenger
Model
MT
Generation
All
Engine
645 - 275hp
Fuel type
diesel

Frequently asked questions

Is Stage 1 tuning safe for the Challenger MT All 645 - 275hp?

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 645 - 275hp make after tuning?

Standard output is 275 HP / 1185 Nm; Stage 1 on this engine typically reaches 330 HP / 1430 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Challenger MT All 645 - 275hp 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 645 - 275hp 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.