Considering an ECU remap for your Mazda 6 1.8i 16v 120hp? A Stage 1 remap can take this 2003 - 2008 petrol engine from 120 BHP to 130 BHP and from 165 Nm to 180 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mazda 6 can achieve.
The Mazda 6 1.8i 16v 120hp is a 1.8L naturally aspirated petrol engine producing 120 BHP and 165 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 130 BHP and 180 Nm — a gain of around 10 BHP (8%) and 15 Nm (9%).
This engine has limited remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
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 |
|---|---|---|---|---|---|
| 2.0 CiTD 120hp | 120 → 170 | +50 | 310 → 370 | +60 | Excellent (8.5/10) |
| 2.0 CiTD 121hp |
| 121 → 170 |
| +49 |
| 320 → 370 |
| +50 |
| Good (7.5/10) |
| 2.0 CiTD 136hp | 136 → 170 | +34 | 310 → 370 | +60 | Good (7.5/10) |
| 2.0 CiTD 140hp | 140 → 170 | +30 | 330 → 400 | +70 | Good (7.5/10) |
| 2.0 CiTD 143hp | 143 → 170 | +27 | 360 → 410 | +50 | Good (6.5/10) |
| 2.5 S-VT 170hp | 170 → 180 | +10 | 226 → 240 | +14 | Moderate (4/10) |
| 2.3 DISI Turbo MPS | 260 → 295 | +35 | 380 → 450 | +70 | Good (6.5/10) |
Get a personalised remap quote for your Mazda 6. 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.
