BMW 7 Series (G11) 2015-2018 740i 321bhp remap figures
Thinking of remapping a BMW 7 Series 740i 321bhp? The standard car makes 321bhp and 450Nm; with a Stage 1 remap from our Leicester workshop we expect around 428bhp and 608Nm, up to +107bhp and +158Nm.
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 | 321 bhp | 428 bhp | +107 bhp |
| Torque | 450 Nm | 608 Nm | +158 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 321 bhp | 450 Nm | |
| Stage 1Maximum software-only performance | 428 bhp | 608 Nm | +107 bhp +158 Nm |
| Stage 1 EcoPerformance with economy in mind | 401 bhp | 595 Nm | +80 bhp +145 Nm |
| Eco mapEconomy first | 393 bhp | 587 Nm | +72 bhp +137 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 7 Series
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
Engine management is by a Bosch MG1CS003 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 questions
How much power does the Stage 1 map give the BMW 7 Series 740i 321bhp?
We expect 428bhp and 608Nm against 321bhp and 450Nm as standard: up to +107bhp and +158Nm. 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 BMW 7 Series 740i 321bhp?
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: 401bhp and 595Nm expected. The Eco map is economy first: 393bhp and 587Nm. Both still sit above the standard 321bhp and 450Nm.
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 BMW 7 Series figures
Other petrol variants
- 740Le 322bhp 2017>
- 740i 335bhp 2019>
- 750i 442bhp 2016-2019
- 750i xDrive 522bhp 2019>
- M760Li 576bhp 2019>
- M760Li 601bhp 2016-2018
All petrol 7 Series (G11) variants · 7 Series (G11) 2015> overview · All BMW figures