Ford Focus 2005-2010 2.5 RS500 345bhp remap figures
The Ford Focus 2.5 RS500 345bhp (2005-2010) is a petrol 2.5L model making 345bhp and 460Nm as standard. After a Stage 1 ECU remap we expect 405bhp and 527Nm - up to 60bhp and 67Nm more than stock.
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 | 345 bhp | 405 bhp | +60 bhp |
| Torque | 460 Nm | 527 Nm | +67 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 345 bhp | 460 Nm | |
| Stage 1Maximum software-only performance | 405 bhp | 527 Nm | +60 bhp +67 Nm |
| Stage 1 EcoPerformance with economy in mind | 390 bhp | 522 Nm | +45 bhp +62 Nm |
| Eco mapEconomy first | 385 bhp | 518 Nm | +40 bhp +58 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 Focus
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 ME9 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 Ford Focus 2.5 RS500 345bhp?
We expect 405bhp and 527Nm against 345bhp and 460Nm as standard: up to +60bhp and +67Nm. 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 Ford Focus 2.5 RS500 345bhp?
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: 390bhp and 522Nm expected. The Eco map is economy first: 385bhp and 518Nm. Both still sit above the standard 345bhp and 460Nm.
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 Ford Focus figures
Other petrol variants
- 2.5 RS 300bhp 2005-2010
- 2.5 ST 221bhp 2005-2010
- 1.8 123bhp 2005-2010
- 1.6 113bhp 2005-2010
- 1.6 98bhp 2005-2010
- 1.4 78bhp 2005-2010
All petrol Focus variants · Focus 2005-2010 overview · All Ford figures