BHP+45 hp (15%)
Standard
305 hp
Tuned
350 hp
Torque+100 Nm (23%)
Standard
440 Nm
Tuned
540 Nm
Suitability
Moderate (5/10)Gains Profile
Torque-focusedHeadroom
MediumFord Focus RS 305hp ECU Remapping
Considering an ECU remap for your Ford Focus RS 305hp? A Stage 1 remap can take this 2004 - 2010 petrol engine from 305 BHP to 350 BHP and from 440 Nm to 540 Nm of torque (naturally aspirated). This engine scores 5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Ford Focus can achieve.
How this engine compares
- 4thof 61 Ford Focus engines by power gain
- 71%of the 9,842 engines we hold gain data for see a smaller power increase
- 79%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Ford Focus RS 305hp is a 2.5L naturally aspirated petrol engine producing 305 BHP and 440 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 350 BHP and 540 Nm — a gain of around 45 BHP (15%) and 100 Nm (23%).
This engine has limited remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
!High tuned torque: check transmission torque capacity and service history.