SEAT Mii 2012> 1.0 12v 73bhp remap figures
Stock, this 2012> SEAT Mii petrol (1.0L) produces 73bhp and 95Nm. Our expected figures for a Stage 1 remap are 84bhp and 123Nm, an expected gain of up to 11bhp and 28Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 73 bhp | 84 bhp | +11 bhp |
| Torque | 95 Nm | 123 Nm | +28 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 73 bhp | 95 Nm | |
| Stage 1Maximum software-only performance | 84 bhp | 123 Nm | +11 bhp +28 Nm |
| Stage 1 EcoPerformance with economy in mind | 81 bhp | 121 Nm | +8 bhp +26 Nm |
| Eco mapEconomy first | 80 bhp | 119 Nm | +7 bhp +24 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your Mii
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
The ECU recorded for this variant is a Bosch ME17.5.20. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the SEAT Mii 1.0 12v 73bhp?
We expect 84bhp and 123Nm against 73bhp and 95Nm as standard: up to +11bhp and +28Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the SEAT Mii 1.0 12v 73bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 81bhp and 121Nm expected. The Eco map is economy first: 80bhp and 119Nm. Both still sit above the standard 73bhp and 95Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More SEAT Mii figures
Other petrol variants
All petrol Mii variants · Mii 2012> overview · All SEAT figures