Vauxhall Corsa (E) 2015> 1.4 16v Turbo 147bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Vauxhall Corsa 1.4 16v Turbo 147bhp (2015>): 172bhp and 261Nm expected from a standard 147bhp and 220Nm, up to +25bhp and +41Nm. It keeps most of the Stage 1 gain (Stage 1 is 180bhp and 265Nm) and is tuned with economy in mind: the choice if you want the performance and care what each tank costs.
Choose your map
Stage 1 Eco remap figures
Stage 1 Eco is performance with economy in mind. It keeps most of the Stage 1 gain, so the car still pulls well, but the map is shaped for efficient, relaxed driving rather than flat-out output. It is above the standard figures. We don't quote mpg, because economy depends on the car and how it is driven.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 147 bhp | 172 bhp | +25 bhp |
| Torque | 220 Nm | 261 Nm | +41 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 147 bhp | 220 Nm | |
| Stage 1Maximum software-only performance | 180 bhp | 265 Nm | +33 bhp +45 Nm |
| Stage 1 EcoPerformance with economy in mind | 172 bhp | 261 Nm | +25 bhp +41 Nm |
| Eco mapEconomy first | 169 bhp | 259 Nm | +22 bhp +39 Nm |
Who is the Stage 1 Eco map for?
- Drivers who want a quicker, more responsive car, tuned with economy in mind.
- Daily drivers who want strong mid-range pull without giving up efficiency.
- Anyone who would otherwise take full Stage 1 but cares what each tank costs.
How Stage 1 Eco compares with Stage 1
Full Stage 1 on this Vauxhall Corsa is expected to give 180bhp and 265Nm (+33bhp, +45Nm). The Stage 1 Eco keeps about 76% of that power gain and 91% of the torque gain, so you get 172bhp and 261Nm: 8bhp less and 4Nm less than Stage 1, with the map shaped for efficient, relaxed driving, so it suits you if you want the pull and care about running costs. Both sit above the standard 147bhp and 220Nm.
What this means for your Corsa
Turbocharged petrol engines respond well to calibration changes: boost and timing are the main levers, and the result is a flatter, stronger torque curve as well as a higher peak.
The ECU recorded for this variant is a Delco E78. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
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 Eco questions
How much power does the Stage 1 Eco map give the Vauxhall Corsa 1.4 16v Turbo 147bhp?
We expect 172bhp and 261Nm against 147bhp and 220Nm as standard: up to +25bhp and +41Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
How does Stage 1 Eco differ from Stage 1 on this engine?
Full Stage 1 is expected to give 180bhp and 265Nm. Stage 1 Eco gives 8bhp less and 4Nm less, in exchange for a map shaped with economy in mind. It still sits above the standard figures.
Is Stage 1 Eco or the Eco map better for me?
Choose Stage 1 Eco if you want the performance (172bhp and 261Nm) and still care about running costs. Choose the Eco map (169bhp and 259Nm) if economy matters more than pace.
Will the Stage 1 Eco map save fuel?
It is tuned with economy in mind while keeping most of the Stage 1 performance. We do not quote mpg figures, because economy depends on the car, its condition and how it is driven.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
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