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.
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.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 1.4i 80hp | 80 → 87 | +7 | 124 → 135 |
| +11 |
| Moderate (4/10) |
| 1.6 TDCi 90hp | 90 → 120 | +30 | 200 → 260 | +60 | Excellent (8/10) |
| 1.6 TDCi 100hp | 100 → 130 | +30 | 215 → 290 | +75 | Excellent (8/10) |
| 1.6i 16v 100hp | 100 → 112 | +12 | 145 → 150 | +5 | Moderate (4/10) |
| 1.6 TDCi 109hp | 109 → 140 | +31 | 245 → 315 | +70 | Good (7.5/10) |
| 2.0 TDCi 110hp | 110 → 175 | +65 | 250 → 400 | +150 | Excellent (8/10) |
| 1.8 TDCi 115hp | 115 → 145 | +30 | 280 → 350 | +70 | Good (7.5/10) |
| 1.6 Ti-VCT 115hp | 115 → 140 | +25 | 155 → 175 | +20 | Moderate (5/10) |
| 1.8i 125hp | 125 → 135 | +10 | 165 → 180 | +15 | Moderate (4/10) |
| 2.0 TDCi 136hp | 136 → 175 | +39 | 320 → 400 | +80 | Good (7.5/10) |
| 2.0i 16v 145hp | 145 → 155 | +10 | 185 → 203 | +18 | Moderate (4/10) |
| 2.5 Turbo ST 225hp | 225 → 255 | +30 | 320 → 400 | +80 | Good (7/10) |
| RS500 350hp | 350 → 370 | +20 | 460 → 560 | +100 | Moderate (4.5/10) |
Get a personalised remap quote for your Ford Focus. We'll connect you with a trusted professional in your area.
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 before proceeding.
