BMW X5 (E53) 1999-2006 4.6iS 347bhp remap figures
Stock, this 1999-2006 BMW X5 petrol (4.6L) produces 347bhp and 480Nm. Our expected figures for a Stage 1 remap are 382bhp and 527Nm, an expected gain of up to 35bhp and 47Nm.
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 | 347 bhp | 382 bhp | +35 bhp |
| Torque | 480 Nm | 527 Nm | +47 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 347 bhp | 480 Nm | |
| Stage 1Maximum software-only performance | 382 bhp | 527 Nm | +35 bhp +47 Nm |
| Stage 1 EcoPerformance with economy in mind | 373 bhp | 523 Nm | +26 bhp +43 Nm |
| Eco mapEconomy first | 370 bhp | 521 Nm | +23 bhp +41 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 X5
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 Bosch ME7.2 engine control unit. Older engine management is simpler to work with, but age matters: worn sensors, leaks and tired components can hold back what a remap delivers, which is why we run a diagnostic check first.
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 X5 4.6iS 347bhp?
We expect 382bhp and 527Nm against 347bhp and 480Nm as standard: up to +35bhp and +47Nm. 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 X5 4.6iS 347bhp?
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: 373bhp and 523Nm expected. The Eco map is economy first: 370bhp and 521Nm. Both still sit above the standard 347bhp and 480Nm.
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 X5 figures
Other petrol variants
All petrol X5 (E53) variants · X5 (E53) 1999-2006 overview · All BMW figures