BMW X3 (G45) 2024> 30e PHEV 299bhp Stage 1 Eco remap figures
The Stage 1 Eco map for the BMW X3 30e PHEV 299bhp (2024>): 394bhp and 615Nm expected from a standard 299bhp and 450Nm, up to +95bhp and +165Nm. It keeps most of the Stage 1 gain (Stage 1 is 425bhp and 629Nm) 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 | 299 bhp | 394 bhp | +95 bhp |
| Torque | 450 Nm | 615 Nm | +165 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 299 bhp | 450 Nm | |
| Stage 1Maximum software-only performance | 425 bhp | 629 Nm | +126 bhp +179 Nm |
| Stage 1 EcoPerformance with economy in mind | 394 bhp | 615 Nm | +95 bhp +165 Nm |
| Eco mapEconomy first | 383 bhp | 606 Nm | +84 bhp +156 Nm |
Who is the Stage 1 Eco map for?
- Naturally aspirated owners who want a little more response and a more efficient, relaxed drive. Every map we list stays above standard.
- Drivers who want the small gain on offer without chasing peak output.
- Anyone who would otherwise take the full Stage 1 map but wants it tuned with economy in mind.
How Stage 1 Eco compares with Stage 1
Full Stage 1 on this BMW X3 is expected to give 425bhp and 629Nm (+126bhp, +179Nm). The Stage 1 Eco keeps about 75% of that power gain and 92% of the torque gain, so you get 394bhp and 615Nm: 31bhp less and 14Nm 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 299bhp and 450Nm.
What this means for your X3
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.
Engine management is by a Bosch MG1CS201 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 BMW X3 30e PHEV 299bhp?
We expect 394bhp and 615Nm against 299bhp and 450Nm as standard: up to +95bhp and +165Nm. 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 425bhp and 629Nm. Stage 1 Eco gives 31bhp less and 14Nm 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 (394bhp and 615Nm) and still care about running costs. Choose the Eco map (383bhp and 606Nm) 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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