Aston Martin Vantage 2008> 4.3 V8 420bhp remap figures
Stock, this 2008> Aston Martin Vantage petrol (4.7L) produces 420bhp and 469Nm. Our expected figures for a Stage 1 remap are 445bhp and 495Nm, an expected gain of up to 25bhp and 26Nm.
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 | 420 bhp | 445 bhp | +25 bhp |
| Torque | 469 Nm | 495 Nm | +26 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 420 bhp | 469 Nm | |
| Stage 1Maximum software-only performance | 445 bhp | 495 Nm | +25 bhp +26 Nm |
| Stage 1 EcoPerformance with economy in mind | 439 bhp | 493 Nm | +19 bhp +24 Nm |
| Eco mapEconomy first | 437 bhp | 492 Nm | +17 bhp +23 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 Vantage
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.
This car is listed with a Ford EEC-VI engine control unit. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
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 Vantage 4.3 V8 420bhp?
We expect 445bhp and 495Nm against 420bhp and 469Nm as standard: up to +25bhp and +26Nm. 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 Vantage 4.3 V8 420bhp?
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: 439bhp and 493Nm expected. The Eco map is economy first: 437bhp and 492Nm. Both still sit above the standard 420bhp and 469Nm.
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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