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 3 Series 318i 156hp? A Stage 1 remap can take this G2x - 2019 -> petrol engine from 156 BHP to 260 BHP and from 250 Nm to 420 Nm of torque (naturally aspirated). This engine scores 6.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your BMW 3 Series can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The BMW 3 serie 318i 156hp is a 2.0L naturally aspirated petrol engine producing 156 BHP and 250 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 260 BHP and 420 Nm — a gain of around 104 BHP (67%) and 170 Nm (68%).
This engine has moderate 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 high, 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..
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.. Large torque increase: drivetrain condition (clutch/gearbox) becomes more important at this level.
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 |
|---|---|---|---|---|---|
| 318d 136hp | 136 → 190 | +54 | 320 → 400 | +80 | Excellent (8.5/10) |
| 318d 150hp | 150 → 190 | +40 | 320 → 400 | +80 | Excellent (8/10) |
| 320d 163hp | 163 → 220 | +57 | 400 → 480 | +80 | Moderate (5.5/10) |
| 320i 184hp | 184 → 250 | +66 | 300 → 440 | +140 | Good (6.5/10) |
| 320i (GPF) 184hp | 184 → 220 | +36 | 290 → 370 | +80 | Moderate (5.5/10) |
| 320d 190hp | 190 → 220 | +30 | 400 → 480 | +80 | Good (7/10) |
| 330e 252hp | 252 → 340 | +88 | 420 → 540 | +120 | Good (6.5/10) |
| 330i 258hp | 258 → 287 | +29 | 400 → 450 | +50 | Moderate (4.5/10) |
| 330d 265hp | 265 → 310 | +45 | 580 → 720 | +140 | Good (7.5/10) |
| 330d 286hp | 286 → 330 | +44 | 650 → 720 | +70 | Moderate (4.5/10) |
| 330e Hybrid 292hp | 292 → 400 | +108 | 420 → 700 | +280 | Good (6.5/10) |
| M340d 340hp | 340 → 380 | +40 | 700 → 750 | +50 | Limited (3.5/10) |
| M340i 374hp | 374 → 420 | +46 | 500 → 575 | +75 | Moderate (4.5/10) |
Get a personalised remap quote for your BMW 3 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.
