Data under review — The figures shown for this engine variant are currently being verified. They may be updated as we refine our data.
Considering an ECU remap for your BMW 6 Series 630i 258hp? A Stage 1 remap can take this G3x - 2017 -> petrol engine from 258 BHP to 310 BHP and from 400 Nm to 470 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 BMW 6 Series can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The BMW 6 serie 630i 258hp is a 2.0L naturally aspirated petrol engine producing 258 BHP and 400 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 310 BHP and 470 Nm — a gain of around 52 BHP (20%) and 70 Nm (18%).
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 moderate, based on the percentage gain available from the factory output.
From a technical perspective, the transmission is many variants use zf 8-speed automatic (where fitted); manuals also exist. at this torque level, transmission and driveline servicing history becomes especially important..
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. Unusually high gain for NA engine: treat as an estimate and verify against the exact engine variant.. 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 |
|---|---|---|---|---|---|
| 620D 190hp | 190 → 220 | +30 | 400 → 440 | +40 | Good (6.5/10) |
| 630D 265hp | 265 → 310 | +45 | 620 → 720 | +100 | Good (7/10) |
| 640D 320hp | 320 → 400 | +80 | 680 → 800 | +120 | Good (7.5/10) |
| 640i 340hp | 340 → 400 | +60 | 450 → 580 | +130 | Moderate (5.5/10) |
| 640i 360hp | 360 → 400 | +40 | 500 → 580 | +80 | Moderate (4.5/10) |
Get a personalised remap quote for your BMW 6 Series. 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.
