Stage 1

Challenger MT All years 655 301hp (221kW) 1295Nm Stage 1

Takes the 655 301hp (221kW) 1295Nm from 301hp to 355hp, and 1295Nm to 1570Nm.

+54horsepower
+275newton metres

Where the gain arrives

Scaled from the manufacturer curve for this engine.

Power before and after
09619228838301,2001,6002,0002,400 RPM 09619228838301,4002,0002,600hp RPM
  • Standard 301hp
  • Remapped 355hp
Torque before and after
04248481272169601,2001,6002,0002,400 RPM 04248481272169601,4002,0002,600Nm RPM
  • Standard 1295Nm
  • Remapped 1570Nm

Standard against Stage 1

MeasureStandardAfterGain
Power301hp355hpup 54
Torque1295Nm1570Nmup 275

What Stage 1 involves

Stage 1 is for a standard car with nothing fitted. We read the original file off the ECU, write a calibration developed for the 655 301hp (221kW) 1295Nm, then road or rolling road test it before handing the car back. Nothing is added and nothing is removed, so it looks and services exactly as it did.

It takes most of a day. We keep your original file, so it can go back to standard at any point. Figures here are for a healthy 655 301hp (221kW) 1295Nm, and we check the car over before writing to it.

See the full 655 301hp (221kW) 1295Nm page for every file and figure, the other engines on this MT, or all Challenger remapping.

Book your MT Stage 1

We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.