Aston Martin DBX 2020> 4.0 V8 (CPC) 542bhp remap figures
Stock, this 2020> Aston Martin DBX petrol (4.0L) produces 542bhp and 700Nm. Our expected figures for a Stage 1 remap are 595bhp and 751Nm, an expected gain of up to 53bhp and 51Nm.
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 | 542 bhp | 595 bhp | +53 bhp |
| Torque | 700 Nm | 751 Nm | +51 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 542 bhp | 700 Nm | |
| Stage 1Maximum software-only performance | 595 bhp | 751 Nm | +53 bhp +51 Nm |
| Stage 1 EcoPerformance with economy in mind | 582 bhp | 747 Nm | +40 bhp +47 Nm |
| Eco mapEconomy first | 578 bhp | 744 Nm | +36 bhp +44 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 DBX
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.
This car is listed with a Bosch MED17.7.5 engine control 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 Aston Martin DBX 4.0 V8 (CPC) 542bhp?
We expect 595bhp and 751Nm against 542bhp and 700Nm as standard: up to +53bhp and +51Nm. 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 Aston Martin DBX 4.0 V8 (CPC) 542bhp?
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: 582bhp and 747Nm expected. The Eco map is economy first: 578bhp and 744Nm. Both still sit above the standard 542bhp and 700Nm.
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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