Ford Mustang 2019> 2.3 EcoBoost 266bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the Ford Mustang 2.3 EcoBoost 266bhp (2019>): 310bhp and 539Nm expected from a standard 266bhp and 441Nm, up to +44bhp and +98Nm. It keeps most of the Stage 1 gain (Stage 1 is 325bhp and 547Nm) 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 | 266 bhp | 310 bhp | +44 bhp |
| Torque | 441 Nm | 539 Nm | +98 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 266 bhp | 441 Nm | |
| Stage 1Maximum software-only performance | 325 bhp | 547 Nm | +59 bhp +106 Nm |
| Stage 1 EcoPerformance with economy in mind | 310 bhp | 539 Nm | +44 bhp +98 Nm |
| Eco mapEconomy first | 306 bhp | 533 Nm | +40 bhp +92 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 Ford Mustang is expected to give 325bhp and 547Nm (+59bhp, +106Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 310bhp and 539Nm: 15bhp less and 8Nm 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 266bhp and 441Nm.
What this means for your Mustang
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.
Engine management is by a Bosch MG1CS017 unit. 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 Ford Mustang 2.3 EcoBoost 266bhp?
We expect 310bhp and 539Nm against 266bhp and 441Nm as standard: up to +44bhp and +98Nm. 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 325bhp and 547Nm. Stage 1 Eco gives 15bhp less and 8Nm 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 (310bhp and 539Nm) and still care about running costs. Choose the Eco map (306bhp and 533Nm) 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.
More Ford Mustang figures
Other petrol variants
- 2.3 EcoBoost 285bhp 2018-2019
- 2.3 EcoBoost 312bhp 2015>
- 5.0 V8 GT 410bhp 2015-2018
- 5.0 V8 443bhp 2018>
- 5.0 V8 Bullitt 452bhp 2018>
All petrol Mustang variants · Mustang 2015> overview · All Ford figures