Performance Calculators

See your projected HP gains before you book — and find out exactly when a tune pays for itself in fuel savings.

HP & Torque Gains Calculator

Select your vehicle type, make, model and engine variant to see projected power and torque gains. Covers cars, utes, trucks and agricultural equipment — over 2,000 vehicles in the database.

Tune Stage:
Projected Results Stage 1 — ECU Remap
Horsepower
Stock
Tuned
Torque
Stock
Tuned
Power Gain
Torque Gain
% Power Increase
Avg Economy Gain

Liked what you saw? Book your tune and get these numbers for real.

Book My Tune →

Economy ROI Calculator

Find out exactly when an ECU remap pays for itself through fuel savings. Adjust the sliders to match your actual annual kilometres and your local diesel price.

25,000 km
$2.30/L
Based on ~10% economy improvement & $850 tune cost
Litres saved per year
Dollars saved per year
Payback period
5-year total saving

Your tune pays for itself — book in and start saving.

Book My Tune

About These Numbers

HP gains are based on typical real-world dyno results for each vehicle model in its standard configuration on NZ diesel. Individual results vary based on vehicle condition, maintenance history, altitude, and operating temperature. Economy figures assume standard highway/mixed driving at ~8.5L/100km baseline with a 10% improvement — high towing or city-only use will vary. These figures are indicative; your actual results will be discussed at time of booking.

Ready to See These Numbers for Real?

Book your tune at our Timaru workshop or request an on-site visit across South Island.