Passenger Car Tuning Calculator

Compare Stage 1 and Stage 1+ estimates or calculate airflow and fuelling in Expert Mode.

Select a vehicle

Manufacturer

Model

Vehicle variant

Engine code

Choose a manufacturer to browse passenger cars or enter your vehicle specifications manually.

Engine profile

Stock power (PS)

Stock torque (Nm)

Peak torque speed (rpm)

Peak power speed (rpm)

Enter torque and peak RPM if known. Stock power is enough for a power estimate.

Custom gains

Power gain (%)

Torque gain (%)

Scenario	Power (PS)	Torque (Nm)

Stage 1 and Stage 1+ model software-only tuning with illustrative gains. Use Custom gains if you have measured or validated values for your engine.