Remap Calculator UK: Estimate BHP & Torque Gains (Stage 1–3)
Use this Remap Calculator to estimate your car’s possible BHP, torque and MPG changes after a Stage 1, Stage 2 or Stage 3 remap.
Your Estimate
Remap Stage Comparison
| Stage | Avg Gain | Requirements | Cost Est. |
|---|---|---|---|
| Stage 1 | 20-30% | Software Only | £200 - £400 |
| Stage 2 | 30-45% | Hardware: Intake, Exhaust | £800 - £1,500 |
| Stage 3 | 50%+ | Hybrid Turbo, Injectors | £2,500+ |
Disclaimer: All calculations are estimates based on typical UK tuning results. Actual figures vary significantly depending on vehicle condition, fuel quality (e.g., 99 RON vs 95 RON), software version, and the specific tuner used. Always ensure your vehicle is in good mechanical health before remapping. Remapping may affect manufacturer warranties.
About Our Remap Calculator
Welcome to our Remap Calculator, a simple UK engine tuning estimator that helps you estimate possible BHP and torque gains before choosing a Stage 1, Stage 2 or Stage 3 remap. Enter your fuel type, engine setup, stock power and tuning goal to get a clear idea of how your vehicle’s performance may change.
Tuning is about more than just numbers; it's about driveability. Use our calculator to see how a "balanced" remap can optimise your vehicle's torque curve for smoother overtaking and better fuel economy.
How to use the Remap Calculator
Enter Details
Provide your stock BHP and Torque, or use our vehicle lookup tool for popular UK models.
Select Stage
Choose between Stage 1 (Software), Stage 2 (Hardware), or Stage 3 (Extreme).
Pick Goal
Select whether you want a focus on economy, peak performance, or a balanced daily drive.
View Results
Get an instant range of estimated gains and see how your car compares across stages.
Frequently Asked Questions
Legal & Safety Compliance
Always comply with UK road-traffic and emissions regulations. Modifications that remove emissions control equipment (such as DPF or EGR deletes) are illegal for use on public roads in the UK. Performance tuning is intended for road-legal vehicles or off-road track use depending on the level of modification.